f34472bac1934ae3dc30de07367ca6febdbb365ddd466e30ee79da43d6346b76

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 10:32

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General

Target
f34472bac1934ae3dc30de07367ca6febdbb365ddd466e30ee79da43d6346b76.dll
Size 368KB
Sample240603-mk4m4acf64
SHA256 f34472bac1934ae3dc30de07367ca6febdbb365ddd466e30ee79da43d6346b76
MD5 5f9bbff29bf929ab433f9fd3355a6d15
SHA1 513c7a53d846948727b23f90acf1ffe825dcb3e9
SHA512 be62a03b2ce958792d185a9899b9cd99189096ec19c0442dfc862065c0fb9a1ea371a46e4680ac6d386f9de336821e552e731154e5c6e72f3a80bd892be2ace1
SSDEEP 6144:rr4ZKPUXyqabdRu9BESTn5iPUKcV9ZrgOK63QBV+UdvrEFp7hKvaxjBSW:rr4Us/FbhZjQBjvrEH7t
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x00080000000233d5-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4644	rundll32.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x00080000000233d5-1.dat	upx
behavioral2/memory/4644-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4644-6-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4644	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3740 wrote to memory of 4644	3740	rundll32.exe	82
PID 3740 wrote to memory of 4644	3740	rundll32.exe	82
PID 3740 wrote to memory of 4644	3740	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f34472bac1934ae3dc30de07367ca6febdbb365ddd466e30ee79da43d6346b76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3740
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f34472bac1934ae3dc30de07367ca6febdbb365ddd466e30ee79da43d6346b76.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4644

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

symsrv.dll

Path C:\Program Files\Common Files\System\symsrv.dll
Size 67KB
SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
MD5 7574cf2c64f35161ab1292e2f532aabf
SHA1 14ba3fa927a06224dfe587014299e834def4644f
SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4644-4-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4644-6-0x0000000010000000-0x0000000010030000-memory.dmp