431e512ea9857f4910ef8efc19ad50ddda42d891845fd68053f8138e96b26cb3

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
16/05/2024, 21:35

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General

Target

431e512ea9857f4910ef8efc19ad50ddda42d891845fd68053f8138e96b26cb3.dll
Size

223KB
MD5

49893db2f56fbadf021b26fa53ed39c9
SHA1

e3b61731dc792e58c53fbe81e45be51b8011e9a7
SHA256

431e512ea9857f4910ef8efc19ad50ddda42d891845fd68053f8138e96b26cb3
SHA512

13691ed1b19584ecf1723e35caa011e5e64fdd5a82d63c9ca445942a717b433a571db4a0194c627d4243bdbce2892241be76a18685220656351424236f9c8bc4
SSDEEP

3072:6huf5AUWGZlKJvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKdw:ZBAUWGZoVagufYLIBV+UdvrEFp7hKdw

Score

9^/10

upx

Malware Config

Signatures

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/files/0x000c00000001226d-1.dat	UPX
behavioral1/memory/1924-3-0x0000000000100000-0x0000000000130000-memory.dmp	UPX
behavioral1/memory/1924-6-0x0000000000100000-0x0000000000130000-memory.dmp	UPX

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000c00000001226d-1.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
1924	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c00000001226d-1.dat	upx
behavioral1/memory/1924-3-0x0000000000100000-0x0000000000130000-memory.dmp	upx
behavioral1/memory/1924-6-0x0000000000100000-0x0000000000130000-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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2568	1924	WerFault.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1768 wrote to memory of 1924	1768	rundll32.exe	28
PID 1924 wrote to memory of 2568	1924	rundll32.exe	29
PID 1924 wrote to memory of 2568	1924	rundll32.exe	29
PID 1924 wrote to memory of 2568	1924	rundll32.exe	29
PID 1924 wrote to memory of 2568	1924	rundll32.exe	29

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\431e512ea9857f4910ef8efc19ad50ddda42d891845fd68053f8138e96b26cb3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\431e512ea9857f4910ef8efc19ad50ddda42d891845fd68053f8138e96b26cb3.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1924
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1924 -s 276
    3⤵
    - Program crash
    PID:2568

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/1924-3-0x0000000000100000-0x0000000000130000-memory.dmp

Filesize
192KB

Download
memory/1924-5-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/1924-6-0x0000000000100000-0x0000000000130000-memory.dmp

Filesize
192KB

Download