Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6403_us	Oct. 15, 2021, 1:48 p.m.	Oct. 15, 2021, 1:50 p.m.

Size	359.5KB
Type	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
MD5	`8575cb6fc0f2e03e427b847b8bf734a9`
SHA256	`6b3e2ac84de7a3c998848636d915108d98ce24a70cddffc483e1681f0210665a`
CRC32	`32CDFF13`
ssdeep	`6144:5habwQRnn0K0ua+uVhy1xwta37VPlmsxcww/Dcdxs6npjyftJ0vakFkMkhB:5h6Iua+meFrVlmyawdO6pjyftJ0Ck1SB`
Yara	PE_Header_Zero - PE File Signature UPX_Zero - UPX packed file Generic_Malware_Zero - Generic Malware IsPE32 - (no description) Is_DotNET_EXE - (no description)

DOCS-93897-2021-2975GJ53.scr "C:\Users\test22\AppData\Local\Temp\DOCS-93897-2021-2975GJ53.scr"
2484
- schtasks.exe "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.tmp"
  2068
- RegSvcs.exe "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
  2696
  - schtasks.exe "schtasks.exe" /create /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp85C5.tmp"
    1892
  - schtasks.exe "schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp877B.tmp"
    2564

Name	Response	Post-Analysis Lookup
No hosts contacted.

IP Address	Status	Action
164.124.101.2	Active	Moloch
185.140.53.75	Active	Moloch

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Queries for the computername (4 events)

Time & API	Arguments	Status	Return
GetComputerNameW Oct. 15, 2021, 1:49 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW Oct. 15, 2021, 1:49 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW Oct. 15, 2021, 1:49 p.m.	computer_name: TEST22-PC	1	1
GetComputerNameW Oct. 15, 2021, 1:49 p.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 Oct. 15, 2021, 1:48 p.m.			0	0
IsDebuggerPresent Oct. 15, 2021, 1:49 p.m.			0	0

Command line console output was observed (4 events)

Time & API	Arguments	Status	Return
WriteConsoleW Oct. 15, 2021, 1:49 p.m.	buffer: ERROR: console_handle: 0x0000000b	1	1
WriteConsoleW Oct. 15, 2021, 1:49 p.m.	buffer: The system cannot find the file specified. console_handle: 0x0000000b	1	1
WriteConsoleW Oct. 15, 2021, 1:49 p.m.	buffer: SUCCESS: The scheduled task "SMTP Host" has successfully been created. console_handle: 0x00000007	1	1
WriteConsoleW Oct. 15, 2021, 1:49 p.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 Oct. 15, 2021, 1:49 p.m.		1	1	0

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

Allocates read-write-execute memory (usually to unpack itself) (50 out of 129 events)

Time & API	Arguments	Status
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 1703936 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00650000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x007b0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73cc1000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0053a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73cc2000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00532000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00542000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00543000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005bb000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005b7000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0054c000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00544000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00545000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00546000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00740000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0055a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00557000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005aa000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0053b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x021f0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00556000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005a2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005b5000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x007b1000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:48 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00547000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00741000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x005ac000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00548000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00549000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x048f0000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x048f1000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x048f2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x048f3000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0054d000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x048f4000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00742000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 20480 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00743000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00748000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0054a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00749000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x021f1000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0074a000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x0074b000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2484 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x021f2000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 region_size: 393216 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00440000 allocation_type: 8192 (MEM_RESERVE) process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00460000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73c41000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004ba000 allocation_type: 4096 (MEM_COMMIT) process_handle: 0xffffffff	1
NtProtectVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 8192 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x73c42000 process_handle: 0xffffffff	1
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 region_size: 4096 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x004b2000 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 /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp85C5.tmp"
cmdline	"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.tmp"
cmdline	"schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp877B.tmp"
cmdline	schtasks.exe /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.tmp"

A process created a hidden window (3 events)

Time & API	Arguments	Status	Return
ShellExecuteExW Oct. 15, 2021, 1:49 p.m.	show_type: 0 filepath_r: schtasks.exe parameters: /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.tmp" filepath: schtasks.exe	1	1
CreateProcessInternalW Oct. 15, 2021, 1:49 p.m.	thread_identifier: 2536 thread_handle: 0x00000208 process_identifier: 1892 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\tmp85C5.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x0000020c	1	1
CreateProcessInternalW Oct. 15, 2021, 1:49 p.m.	thread_identifier: 2604 thread_handle: 0x00000208 process_identifier: 2564 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\tmp877B.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x00000280	1	1

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

section

{u'size_of_data': u'0x00059200', u'virtual_address': u'0x00002000', u'entropy': 7.952060518337613, u'name': u'.text', u'virtual_size': u'0x00059168'}

entropy

7.95206051834

description

A section with a high entropy has been found

entropy

0.993036211699

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 Oct. 15, 2021, 1:49 p.m.	system_name: privilege_name: SeDebugPrivilege	1	1	0
LookupPrivilegeValueW Oct. 15, 2021, 1:49 p.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 /f /tn "SMTP Host" /xml "C:\Users\test22\AppData\Local\Temp\tmp85C5.tmp"
cmdline	"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.tmp"
cmdline	"schtasks.exe" /create /f /tn "SMTP Host Task" /xml "C:\Users\test22\AppData\Local\Temp\tmp877B.tmp"
cmdline	schtasks.exe /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.tmp"

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

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

Communicates with host for which no DNS query was performed (1 event)

host

185.140.53.75

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

Time & API	Arguments	Status	Return	Repeated
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 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: 0x00000348	1	0	0

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

Time & API	Arguments	Status	Return	Repeated
NtQuerySystemInformation Oct. 15, 2021, 1:49 p.m.	information_class: 8 (SystemProcessorPerformanceInformation)	1	0	0

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

description

RegSvcs.exe tried to sleep 5456697 seconds, actually delayed analysis time by 5456697 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\tmp85C5.tmp

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

Time & API	Arguments	Status	Return
WriteProcessMemory Oct. 15, 2021, 1:49 p.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: 2696 process_handle: 0x00000348	1	1
WriteProcessMemory Oct. 15, 2021, 1:49 p.m.	buffer: à7 base_address: 0x00420000 process_identifier: 2696 process_handle: 0x00000348	1	1
WriteProcessMemory Oct. 15, 2021, 1:49 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2696 process_handle: 0x00000348	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 Oct. 15, 2021, 1:49 p.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: 2696 process_handle: 0x00000348	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 2484 called NtSetContextThread to modify thread in remote process 2696
NtSetContextThread Oct. 15, 2021, 1:49 p.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: 0x00000344 process_identifier: 2696	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 2484 resumed a thread in remote process 2696
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000344 suspend_count: 1 process_identifier: 2696	1	0	0

File has been identified by 22 AntiVirus engines on VirusTotal as malicious (22 events)

Elastic	malicious (high confidence)
FireEye	Generic.mg.8575cb6fc0f2e03e
McAfee	RDN/Generic BackDoor
Cylance	Unsafe
Sangfor	Trojan.Win32.Save.a
CrowdStrike	win/malicious_confidence_60% (W)
Cyren	W32/MSIL_Kryptik.FVY.gen!Eldorado
ESET-NOD32	a variant of MSIL/Kryptik.ADEA
APEX	Malicious
Kaspersky	HEUR:Backdoor.MSIL.NanoBot.gen
Avast	Win32:PWSX-gen [Trj]
McAfee-GW-Edition	BehavesLike.Win32.Generic.fc
Sophos	ML/PE-A
Ikarus	Trojan-Spy.Keylogger.AgentTesla
MaxSecure	Trojan.Malware.300983.susgen
Microsoft	Trojan:MSIL/AgentTesla.LAQ!MTB
Cynet	Malicious (score: 100)
BitDefenderTheta	Gen:NN.ZemsilF.34218.wm0@aSB!XDj
Malwarebytes	MachineLearning/Anomalous.100%
SentinelOne	Static AI - Malicious PE
Fortinet	MSIL/GenKryptik.FLYH!tr
AVG	Win32:PWSX-gen [Trj]

Executed a process and injected code into it, probably while unpacking (30 events)

Time & API	Arguments	Status	Return
NtResumeThread Oct. 15, 2021, 1:48 p.m.	thread_handle: 0x000000d0 suspend_count: 1 process_identifier: 2484	1	0
NtResumeThread Oct. 15, 2021, 1:48 p.m.	thread_handle: 0x0000015c suspend_count: 1 process_identifier: 2484	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x000001f4 suspend_count: 1 process_identifier: 2484	1	0
CreateProcessInternalW Oct. 15, 2021, 1:49 p.m.	thread_identifier: 3052 thread_handle: 0x00000380 process_identifier: 2068 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\vhHiynSGnoB" /XML "C:\Users\test22\AppData\Local\Temp\tmp82C7.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: 0x00000388	1	1
CreateProcessInternalW Oct. 15, 2021, 1:49 p.m.	thread_identifier: 2836 thread_handle: 0x00000344 process_identifier: 2696 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: 0x00000348	1	1
NtGetContextThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000344	1	0
NtAllocateVirtualMemory Oct. 15, 2021, 1:49 p.m.	process_identifier: 2696 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: 0x00000348	1	0
WriteProcessMemory Oct. 15, 2021, 1:49 p.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: 2696 process_handle: 0x00000348	1	1
WriteProcessMemory Oct. 15, 2021, 1:49 p.m.	buffer: base_address: 0x00402000 process_identifier: 2696 process_handle: 0x00000348	1	1
WriteProcessMemory Oct. 15, 2021, 1:49 p.m.	buffer: à7 base_address: 0x00420000 process_identifier: 2696 process_handle: 0x00000348	1	1
WriteProcessMemory Oct. 15, 2021, 1:49 p.m.	buffer: base_address: 0x00422000 process_identifier: 2696 process_handle: 0x00000348	1	1
WriteProcessMemory Oct. 15, 2021, 1:49 p.m.	buffer: @ base_address: 0x7efde008 process_identifier: 2696 process_handle: 0x00000348	1	1
NtSetContextThread Oct. 15, 2021, 1:49 p.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: 0x00000344 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000344 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000374 suspend_count: 1 process_identifier: 2484	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x000000d0 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x0000015c suspend_count: 1 process_identifier: 2696	1	0
CreateProcessInternalW Oct. 15, 2021, 1:49 p.m.	thread_identifier: 2536 thread_handle: 0x00000208 process_identifier: 1892 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\tmp85C5.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x0000020c	1	1
CreateProcessInternalW Oct. 15, 2021, 1:49 p.m.	thread_identifier: 2604 thread_handle: 0x00000208 process_identifier: 2564 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\tmp877B.tmp" filepath_r: stack_pivoted: 0 creation_flags: 134217728 (CREATE_NO_WINDOW) inherit_handles: 1 process_handle: 0x00000280	1	1
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x000002a0 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x000002dc suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x000002e4 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000338 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x0000034c suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000364 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x00000384 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x0000039c suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:49 p.m.	thread_handle: 0x000003b4 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:50 p.m.	thread_handle: 0x000003d0 suspend_count: 1 process_identifier: 2696	1	0
NtResumeThread Oct. 15, 2021, 1:50 p.m.	thread_handle: 0x000003d8 suspend_count: 1 process_identifier: 2696	1	0

Connects to IP addresses that are no longer responding to requests (legitimate services will remain up-and-running usually) (16 events)

dead_host	192.168.56.103:49188
dead_host	185.140.53.75:97
dead_host	192.168.56.103:49181
dead_host	192.168.56.103:49180
dead_host	192.168.56.103:49185
dead_host	192.168.56.103:49183
dead_host	192.168.56.103:49184
dead_host	192.168.56.103:49182
dead_host	192.168.56.103:49187
dead_host	192.168.56.103:49177
dead_host	192.168.56.103:49186
dead_host	192.168.56.103:49175
dead_host	192.168.56.103:49176
dead_host	192.168.56.103:49179
dead_host	192.168.56.103:49178
dead_host	192.168.56.103:49189

DOCS-93897-2021-2975GJ53.scr

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