Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6402	Sept. 3, 2021, 9:11 a.m.	Sept. 3, 2021, 9:15 a.m.

Size	576.5KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`221187fbd15140dada95281d6eb078d7`
SHA256	`1dde25e326f8d6c6909b87573b3b1ea14f96836ad6eddb7fc92787488117e27d`
CRC32	`D8FC9004`
ssdeep	`12288:ymP0iKBEIgba7NslpdjSP+FM0yRKQIwdZ9rk4UlC1SVF1WYu6dT1dso:NeCa7NslpBSPAM0ynBGlK`
Yara	PE_Header_Zero - PE File Signature Generic_Malware_Zero - Generic Malware Is_DotNET_EXE - (no description) IsPE32 - (no description)

catzx.exe "C:\Users\test22\AppData\Local\Temp\catzx.exe"
1608
- schtasks.exe "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp"
  2860
- RegSvcs.exe "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
  2440
  - schtasks.exe "schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp3201.tmp"
    2512
  - schtasks.exe "schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp330B.tmp"
    2920

Name	Response	Post-Analysis Lookup
tzitziklishop.ddns.net	A 103.89.89.134	103.89.89.134

IP Address	Status	Action
103.89.89.134	Active	Moloch

Suricata Alerts

Flow	SID	Signature	Category
UDP 192.168.56.102:52062 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:58838 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:52336 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:64034 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:64472 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:64995 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:63780 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:54322 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:58508 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:61115 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:59731 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:52001 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:58020 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic
UDP 192.168.56.102:55113 -> 8.8.8.8:53	2028675	ET POLICY DNS Query to DynDNS Domain *.ddns .net	Potentially Bad Traffic

Suricata TLS

No Suricata TLS

Queries for the computername (4 events)

Time & API	Arguments	Status	Return
GetComputerNameW Sept. 3, 2021, 9:11 a.m.	computer_name: TEST22-PC	1	1
GetComputerNameW Sept. 3, 2021, 9:12 a.m.	computer_name: TEST22-PC	1	1
GetComputerNameW Sept. 3, 2021, 9:12 a.m.	computer_name: TEST22-PC	1	1
GetComputerNameW Sept. 3, 2021, 9:12 a.m.	computer_name: TEST22-PC	1	1

Checks if process is being debugged by a debugger (2 events)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent Sept. 3, 2021, 9:11 a.m.			0	0
IsDebuggerPresent Sept. 3, 2021, 9:11 a.m.			0	0

Command line console output was observed (4 events)

Time & API	Arguments	Status	Return
WriteConsoleW Sept. 3, 2021, 9:11 a.m.	buffer: ERROR: console_handle: 0x0000000b	1	1
WriteConsoleW Sept. 3, 2021, 9:11 a.m.	buffer: The system cannot find the file specified. console_handle: 0x0000000b	1	1
WriteConsoleW Sept. 3, 2021, 9:12 a.m.	buffer: SUCCESS: The scheduled task "SMTP Host" has successfully been created. console_handle: 0x00000007	1	1
WriteConsoleW Sept. 3, 2021, 9:12 a.m.	buffer: SUCCESS: The scheduled task "SMTP Host Task" has successfully been created. console_handle: 0x00000007	1	1

Collects information to fingerprint the system (MachineGuid, DigitalProductId, SystemBiosDate) (1 event)

registry

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\MachineGuid

Checks amount of memory in system, this can be used to detect virtual machines that have a low amount of memory available (1 event)

Time & API	Arguments	Status	Return	Repeated
GlobalMemoryStatusEx Sept. 3, 2021, 9:11 a.m.		1	1	0

One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.

Connects to a Dynamic DNS Domain (1 event)

domain

tzitziklishop.ddns.net

Allocates read-write-execute memory (usually to unpack itself) (50 out of 156 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 524288 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00470000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004b0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73291000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0048a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73292000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00482000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00492000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00493000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0050b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00507000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0049c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf1000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf3000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf4000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00494000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00495000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00496000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00497000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf5000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004aa000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004a7000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004fa000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0048b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00498000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00499000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf6000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73e22000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf7000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf8000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004a6000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bf9000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0049a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bfa000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00fe0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 327680 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef50000 allocation_type: 1056768 (MEM_RESERVE\|MEM_TOP_DOWN) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef50000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef50000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 65536 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef40000 allocation_type: 1056768 (MEM_RESERVE\|MEM_TOP_DOWN) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x7ef40000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00bfb000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004f2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00505000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004b1000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x01220000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00fe1000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00fe2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00fe3000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 1608 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0049d000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1

Checks whether any human activity is being performed by constantly checking whether the foreground window changed

Creates a suspicious process (4 events)

cmdline	schtasks.exe /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp"
cmdline	"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp"
cmdline	"schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp3201.tmp"
cmdline	"schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp330B.tmp"

A process created a hidden window (3 events)

Time & API	Arguments	Status	Return
ShellExecuteExW Sept. 3, 2021, 9:11 a.m.	show_type: 0 filepath_r: schtasks.exe parameters: /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp" filepath: schtasks.exe	1	1
CreateProcessInternalW Sept. 3, 2021, 9:11 a.m.	thread_identifier: 2812 thread_handle: 0x0000021c process_identifier: 2512 current_directory: C:\Windows\Microsoft.NET\Framework\v2.0.50727 filepath: track: 1 command_line: "schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp3201.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x00000220	1	1
CreateProcessInternalW Sept. 3, 2021, 9:12 a.m.	thread_identifier: 2820 thread_handle: 0x0000021c process_identifier: 2920 current_directory: C:\Windows\Microsoft.NET\Framework\v2.0.50727 filepath: track: 1 command_line: "schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp330B.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x00000294	1	1

The binary likely contains encrypted or compressed data indicative of a packer (2 events)

section

{u'size_of_data': u'0x0008f800', u'virtual_address': u'0x00002000', u'entropy': 7.734690854392901, u'name': u'.text', u'virtual_size': u'0x0008f6f4'}

entropy

7.73469085439

description

A section with a high entropy has been found

entropy

0.996527777778

description

Overall entropy of this PE file is high

Checks for the Locally Unique Identifier on the system for a suspicious privilege (2 events)

Time & API	Arguments	Status	Return	Repeated
LookupPrivilegeValueW Sept. 3, 2021, 9:11 a.m.	system_name: privilege_name: SeDebugPrivilege	1	1	0
LookupPrivilegeValueW Sept. 3, 2021, 9:12 a.m.	system_name: privilege_name: SeDebugPrivilege	1	1	0

Yara rule detected in process memory (9 events)

description	Communications use DNS	rule	Network_DNS
description	(no description)	rule	DebuggerCheck__GlobalFlags
description	(no description)	rule	DebuggerCheck__QueryInfo
description	(no description)	rule	DebuggerHiding__Thread
description	(no description)	rule	DebuggerHiding__Active
description	(no description)	rule	ThreadControl__Context
description	(no description)	rule	SEH__vectored
description	Checks if being debugged	rule	anti_dbg
description	Bypass DEP	rule	disable_dep

Uses Windows utilities for basic Windows functionality (4 events)

cmdline	schtasks.exe /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp"
cmdline	"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp"
cmdline	"schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp3201.tmp"
cmdline	"schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp330B.tmp"

One or more of the buffers contains an embedded PE file (2 events)

buffer	Buffer with sha1: 874b7c3c97cc5b13b9dd172fec5a54bc1f258005
buffer	Buffer with sha1: 874f3caf663265f7dd18fb565d91b7d915031251

Allocates execute permission to another process indicative of possible code injection (1 event)

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 2440 region_size: 229376 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x00000344	1	0	0

Looks for the Windows Idle Time to determine the uptime (1 event)

Time & API	Arguments	Status	Return	Repeated
NtQuerySystemInformation Sept. 3, 2021, 9:12 a.m.	information_class: 8 (SystemProcessorPerformanceInformation)	1	0	0

A process attempted to delay the analysis task. (1 event)

description

RegSvcs.exe tried to sleep 5456639 seconds, actually delayed analysis time by 5456639 seconds

Installs itself for autorun at Windows startup (1 event)

reg_key

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Host

reg_value

C:\Program Files (x86)\SMTP Host\smtphost.exe

Deletes executed files from disk (1 event)

file	C:\Users\test22\AppData\Local\Temp\tmp3201.tmp

Potential code injection by writing to the memory of another process (3 events)

Time & API	Arguments	Status	Return
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PEL¡'éTàÈbç @ 8çW À_ H.textÇ È `.relocÊ@B.rsrcÀ_ `Ì@@ base_address: 0x00400000 process_identifier: 2440 process_handle: 0x00000344	1	1
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: à7 base_address: 0x00420000 process_identifier: 2440 process_handle: 0x00000344	1	1
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2440 process_handle: 0x00000344	1	1

Code injection by writing an executable or DLL to the memory of another process (1 event)

Time & API	Arguments	Status	Return	Repeated
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PEL¡'éTàÈbç @ 8çW À_ H.textÇ È `.relocÊ@B.rsrcÀ_ `Ì@@ base_address: 0x00400000 process_identifier: 2440 process_handle: 0x00000344	1	1	0

Used NtSetContextThread to modify a thread in a remote process indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 1608 called NtSetContextThread to modify thread in remote process 2440
NtSetContextThread Sept. 3, 2021, 9:11 a.m.	registers.eip: 0 registers.esp: 0 registers.edi: 0 registers.eax: 4319122 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x0000033c process_identifier: 2440	1	0	0

Attempts to remove evidence of file being downloaded from the Internet (1 event)

file	C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe:Zone.Identifier

Resumed a suspended thread in a remote process potentially indicative of process injection (2 events)

Time & API	Arguments	Status	Return	Repeated
Process injection	Process 1608 resumed a thread in remote process 2440
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x0000033c suspend_count: 1 process_identifier: 2440	1	0	0

Executed a process and injected code into it, probably while unpacking (29 events)

Time & API	Arguments	Status	Return
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x000000d0 suspend_count: 1 process_identifier: 1608	1	0
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x0000015c suspend_count: 1 process_identifier: 1608	1	0
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x000001fc suspend_count: 1 process_identifier: 1608	1	0
CreateProcessInternalW Sept. 3, 2021, 9:11 a.m.	thread_identifier: 2864 thread_handle: 0x000003c0 process_identifier: 2860 current_directory: C:\Users\test22\AppData\Local\Temp filepath: C:\Windows\System32\schtasks.exe track: 1 command_line: "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aEITvNqLgQys" /XML "C:\Users\test22\AppData\Local\Temp\tmp300D.tmp" filepath_r: C:\Windows\System32\schtasks.exe stack_pivoted: 0 creation_flags: 67634192 (CREATE_DEFAULT_ERROR_MODE\|CREATE_NEW_CONSOLE\|CREATE_UNICODE_ENVIRONMENT\|EXTENDED_STARTUPINFO_PRESENT) inherit_handles: 0 process_handle: 0x000003c8	1	1
CreateProcessInternalW Sept. 3, 2021, 9:11 a.m.	thread_identifier: 1988 thread_handle: 0x0000033c process_identifier: 2440 current_directory: filepath: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe track: 1 command_line: filepath_r: C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe stack_pivoted: 0 creation_flags: 134217732 (CREATE_NO_WINDOW\|CREATE_SUSPENDED) inherit_handles: 0 process_handle: 0x00000344	1	1
NtGetContextThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x0000033c	1	0
NtAllocateVirtualMemory Sept. 3, 2021, 9:11 a.m.	process_identifier: 2440 region_size: 229376 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00400000 allocation_type: 12288 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0x00000344	1	0
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: MZÿÿ¸@º´ Í!¸LÍ!This program cannot be run in DOS mode. $PEL¡'éTàÈbç @ 8çW À_ H.textÇ È `.relocÊ@B.rsrcÀ_ `Ì@@ base_address: 0x00400000 process_identifier: 2440 process_handle: 0x00000344	1	1
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: base_address: 0x00402000 process_identifier: 2440 process_handle: 0x00000344	1	1
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: à7 base_address: 0x00420000 process_identifier: 2440 process_handle: 0x00000344	1	1
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: base_address: 0x00422000 process_identifier: 2440 process_handle: 0x00000344	1	1
WriteProcessMemory Sept. 3, 2021, 9:11 a.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2440 process_handle: 0x00000344	1	1
NtSetContextThread Sept. 3, 2021, 9:11 a.m.	registers.eip: 0 registers.esp: 0 registers.edi: 0 registers.eax: 4319122 registers.ebp: 0 registers.edx: 0 registers.ebx: 2130567168 registers.esi: 0 registers.ecx: 0 thread_handle: 0x0000033c process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x0000033c suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x000003b4 suspend_count: 1 process_identifier: 1608	1	0
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x000000d0 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:11 a.m.	thread_handle: 0x00000160 suspend_count: 1 process_identifier: 2440	1	0
CreateProcessInternalW Sept. 3, 2021, 9:11 a.m.	thread_identifier: 2812 thread_handle: 0x0000021c process_identifier: 2512 current_directory: C:\Windows\Microsoft.NET\Framework\v2.0.50727 filepath: track: 1 command_line: "schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp3201.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x00000220	1	1
CreateProcessInternalW Sept. 3, 2021, 9:12 a.m.	thread_identifier: 2820 thread_handle: 0x0000021c process_identifier: 2920 current_directory: C:\Windows\Microsoft.NET\Framework\v2.0.50727 filepath: track: 1 command_line: "schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp330B.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x00000294	1	1
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x000002b4 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x000002e4 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x000002ec suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x00000360 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x00000374 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x0000038c suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x000003a4 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x000003bc suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:12 a.m.	thread_handle: 0x000003d0 suspend_count: 1 process_identifier: 2440	1	0
NtResumeThread Sept. 3, 2021, 9:13 a.m.	thread_handle: 0x000003e0 suspend_count: 1 process_identifier: 2440	1	0

File has been identified by 31 AntiVirus engines on VirusTotal as malicious (31 events)

Elastic	malicious (high confidence)
MicroWorld-eScan	Gen:Variant.MSILHeracles.25528
FireEye	Generic.mg.221187fbd15140da
McAfee	RDN/Generic.com
Cylance	Unsafe
Alibaba	Trojan:Win32/starter.ali1000139
BitDefenderTheta	Gen:NN.ZemsilF.34126.Km0@aifsuTe
Cyren	W32/MSIL_Kryptik.FKK.gen!Eldorado
Symantec	Trojan.Gen.2
ESET-NOD32	a variant of MSIL/GenKryptik.FJXT
APEX	Malicious
Paloalto	generic.ml
Kaspersky	HEUR:Trojan.MSIL.Taskun.gen
BitDefender	Gen:Variant.MSILHeracles.25528
Tencent	Win32.Trojan.Inject.Auto
Ad-Aware	Gen:Variant.MSILHeracles.25528
Sophos	Mal/Generic-S
McAfee-GW-Edition	BehavesLike.Win32.Generic.hc
Emsisoft	Gen:Variant.MSILHeracles.25528 (B)
SentinelOne	Static AI - Malicious PE
eGambit	Unsafe.AI_Score_100%
MAX	malware (ai score=84)
Kingsoft	Win32.Hack.Undef.(kcloud)
Microsoft	Trojan:Win32/Sabsik.FL.B!ml
GData	MSIL.Backdoor.Nancat.YPLRKX
Cynet	Malicious (score: 100)
Malwarebytes	MachineLearning/Anomalous.94%
Ikarus	Trojan.MSIL.Krypt
Fortinet	MSIL/GenKryptik.FJWB!tr
Webroot	W32.Trojan.Gen
CrowdStrike	win/malicious_confidence_100% (W)

Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually) (15 events)

dead_host	192.168.56.102:49173
dead_host	192.168.56.102:49184
dead_host	192.168.56.102:49178
dead_host	192.168.56.102:49185
dead_host	192.168.56.102:49179
dead_host	192.168.56.102:49176
dead_host	192.168.56.102:49177
dead_host	192.168.56.102:49182
dead_host	103.89.89.134:1665
dead_host	192.168.56.102:49183
dead_host	192.168.56.102:49180
dead_host	192.168.56.102:49174
dead_host	192.168.56.102:49181
dead_host	192.168.56.102:49175
dead_host	192.168.56.102:49186

catzx.exe

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