8a039d4cbf7b4c638c9dd0454dd8597e79529bc8d547680bbc62e784f12576f0

Analysis

max time kernel
92s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
28-05-2024 10:52

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General

Target

8a039d4cbf7b4c638c9dd0454dd8597e79529bc8d547680bbc62e784f12576f0.dll
Size

223KB
MD5

42fc1eab72d6215a860eb3c10a541673
SHA1

37b3088d2676415f21c4c7554285c35d0c4f20ca
SHA256

8a039d4cbf7b4c638c9dd0454dd8597e79529bc8d547680bbc62e784f12576f0
SHA512

6fc7c0f36f836ed3966512c84c70e55bc32719b99d522d873b00af9b75f1524be015c1a6a5c61420efa0b3b06abd86cc4b636db1092a46f2f48366c6f27f1d8f
SSDEEP

3072:6huf5AUWGrnjJvK2agufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKfuqv:ZBAUWGrFVagufYLIBV+UdvrEFp7hKFv

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/0x000800000002343b-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
4008	rundll32.exe
4008	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000002343b-1.dat	upx
behavioral2/memory/4008-6-0x0000000001360000-0x0000000001390000-memory.dmp	upx
behavioral2/memory/4008-10-0x0000000001360000-0x0000000001390000-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
5032	4008	WerFault.exe	84

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4008	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1212 wrote to memory of 4008	1212	rundll32.exe	84
PID 1212 wrote to memory of 4008	1212	rundll32.exe	84
PID 1212 wrote to memory of 4008	1212	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a039d4cbf7b4c638c9dd0454dd8597e79529bc8d547680bbc62e784f12576f0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8a039d4cbf7b4c638c9dd0454dd8597e79529bc8d547680bbc62e784f12576f0.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4008
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4008 -s 712
    3⤵
    - Program crash
    PID:5032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4008 -ip 4008
1⤵
PID:64

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/4008-6-0x0000000001360000-0x0000000001390000-memory.dmp

Filesize
192KB

Download
memory/4008-8-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/4008-10-0x0000000001360000-0x0000000001390000-memory.dmp

Filesize
192KB

Download