Summary | ZeroBOX

Category	Machine	Started	Completed
FILE	s1_win7_x6401	March 12, 2022, 10:27 p.m.	March 12, 2022, 10:50 p.m.

Size	980.6KB
Type	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
MD5	`1a5df93142ccad861ae2a1adbb571d0e`
SHA256	`5351b008bbc4c1b1073dc419143cfd7a0cabc15f796563155e0b579cd080373d`
CRC32	`995B0D88`
ssdeep	`24576:p1PghBzKWN1zjpjLJ1RxfawzZA2UDF/WYVO0dD:pVax1zBLnfNZA2UDgYE01`
Yara	Malicious_Packer_Zero - Malicious Packer PE_Header_Zero - PE File Signature Generic_Malware_Zero - Generic Malware Malicious_Library_Zero - Malicious_Library IsDLL - (no description) UPX_Zero - UPX packed file IsPE64 - (no description)

rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\cat.php.dll,
2872
rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\cat.php.dll,zFijxQxKeyxOddj
2788
- rundll32.exe "C:\Windows\System32\rundll32.exe" C:\Users\test22\AppData\Local\Temp\cat.php.dll,zFijxQxKeyxOddj
  2944

Name	Response	Post-Analysis Lookup
benokij.com	A 139.60.161.165	139.60.161.165

IP Address	Status	Action
139.60.161.165	Active	Moloch
164.124.101.2	Active	Moloch

Suricata Alerts

No Suricata Alerts

Suricata TLS

No Suricata TLS

Queries for the computername (1 event)

Time & API	Arguments	Status	Return	Repeated
GetComputerNameA March 12, 2022, 10:19 p.m.	computer_name: TEST22-PC	1	1	0

Checks if process is being debugged by a debugger (1 event)

Time & API	Arguments	Status	Return	Repeated
IsDebuggerPresent March 12, 2022, 10:19 p.m.			0	0

The file contains an unknown PE resource name possibly indicative of a packer (1 event)

resource name

РОТТЕАВУ

Allocates read-write-execute memory (usually to unpack itself) (2 events)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory March 12, 2022, 10:19 p.m.	process_identifier: 2944 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 length: 4096 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x000000007391c000 process_handle: 0xffffffffffffffff	1	0	0
NtAllocateVirtualMemory March 12, 2022, 10:19 p.m.	process_identifier: 2944 region_size: 266240 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 0 protection: 64 (PAGE_EXECUTE_READWRITE) base_address: 0x00000000021a0000 allocation_type: 12289 (MEM_COMMIT\|MEM_RESERVE) process_handle: 0xffffffffffffffff	1	0	0

Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) (1 event)

Time & API	Arguments	Status	Return	Repeated
NtProtectVirtualMemory March 12, 2022, 10:19 p.m.	process_identifier: 2944 stack_dep_bypass: 0 stack_pivoted: 0 heap_dep_bypass: 1 length: 176128 protection: 32 (PAGE_EXECUTE_READ) base_address: 0x00000000026a0000 process_handle: 0xffffffffffffffff	1	0	0

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

section

{u'size_of_data': u'0x0004a000', u'virtual_address': u'0x000af000', u'entropy': 7.8488838296558034, u'name': u'.rsrc', u'virtual_size': u'0x00049eac'}

entropy

7.84888382966

description

A section with a high entropy has been found

entropy

0.302194997448

description

Overall entropy of this PE file is high

Connects to an IP address that is no longer responding to requests (legitimate services will remain up-and-running usually) (1 event)

dead_host

139.60.161.165:443

cat.php

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Suricata Alerts

Suricata TLS

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