42121b9609f7c3a5853f930d03d06c30756e6678ea7b38338cce1224e58db546

Analysis

max time kernel
141s
max time network
127s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
17/05/2024, 14:01

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General

Target

42121b9609f7c3a5853f930d03d06c30756e6678ea7b38338cce1224e58db546.dll
Size

223KB
MD5

59974895901d658e2b723a448a8f516c
SHA1

6b9dfab80e52f0c417718d008493e2246f94cad5
SHA256

42121b9609f7c3a5853f930d03d06c30756e6678ea7b38338cce1224e58db546
SHA512

fe5fff7ce136dde4a38ec8fafa344e2e7d41a0a66bd9c098f55d8b7cb366cfbb4f62fa46ddea94e6dfbe349ad813fcf675819719b5a443579aa9b9f98fe135ca
SSDEEP

3072:6huf5A14cv+JvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hK/xvFuN:ZBA1WVagufYLIBV+UdvrEFp7hK/xvm

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/0x0006000000023278-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
4384	rundll32.exe
4384	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023278-1.dat	upx
behavioral2/memory/4384-7-0x0000000001FC0000-0x0000000001FF0000-memory.dmp	upx
behavioral2/memory/4384-6-0x0000000001FC0000-0x0000000001FF0000-memory.dmp	upx
behavioral2/memory/4384-11-0x0000000001FC0000-0x0000000001FF0000-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
772	4384	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4384	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 4384	2180	rundll32.exe	82
PID 2180 wrote to memory of 4384	2180	rundll32.exe	82
PID 2180 wrote to memory of 4384	2180	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\42121b9609f7c3a5853f930d03d06c30756e6678ea7b38338cce1224e58db546.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\42121b9609f7c3a5853f930d03d06c30756e6678ea7b38338cce1224e58db546.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 712
    3⤵
    - Program crash
    PID:772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4384 -ip 4384
1⤵
PID:2896

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

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

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/4384-7-0x0000000001FC0000-0x0000000001FF0000-memory.dmp

Filesize
192KB

Download
memory/4384-6-0x0000000001FC0000-0x0000000001FF0000-memory.dmp

Filesize
192KB

Download
memory/4384-9-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/4384-11-0x0000000001FC0000-0x0000000001FF0000-memory.dmp

Filesize
192KB

Download