2a3ca3cfac0862bf8dbce25da2153deb7e2fc99866583f5b0b0254681650396e

Analysis

max time kernel
141s
max time network
150s
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 07:22

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General

Target

2a3ca3cfac0862bf8dbce25da2153deb7e2fc99866583f5b0b0254681650396e.dll
Size

223KB
MD5

5f76e3617389e1e491b46e73a37bf173
SHA1

81187148b8665dbab9bf04d5bbabaf1c108f8851
SHA256

2a3ca3cfac0862bf8dbce25da2153deb7e2fc99866583f5b0b0254681650396e
SHA512

b3d01a2e14fe2bab17fa6036ccd5ddd7465cf65f2eac87b5d3a090e9bb0c44b53b8b5b767c838a67a131ae04049c41b873050c916768033b91bef5160efe5a1c
SSDEEP

3072:6huf5AUWGIcv7JSVagufAnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKl2B:ZBAUWGwVagufYLIBV+UdvrEFp7hKl2B

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/0x00050000000232a4-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
1732	rundll32.exe
1732	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00050000000232a4-1.dat	upx
behavioral2/memory/1732-6-0x0000000000CF0000-0x0000000000D20000-memory.dmp	upx
behavioral2/memory/1732-7-0x0000000000CF0000-0x0000000000D20000-memory.dmp	upx
behavioral2/memory/1732-11-0x0000000000CF0000-0x0000000000D20000-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
1460	1732	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1732	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 1732	3576	rundll32.exe	82
PID 3576 wrote to memory of 1732	3576	rundll32.exe	82
PID 3576 wrote to memory of 1732	3576	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a3ca3cfac0862bf8dbce25da2153deb7e2fc99866583f5b0b0254681650396e.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3576
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\2a3ca3cfac0862bf8dbce25da2153deb7e2fc99866583f5b0b0254681650396e.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:1732
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1732 -s 700
    3⤵
    - Program crash
    PID:1460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1732 -ip 1732
1⤵
PID:3104

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/1732-6-0x0000000000CF0000-0x0000000000D20000-memory.dmp

Filesize
192KB

Download
memory/1732-7-0x0000000000CF0000-0x0000000000D20000-memory.dmp

Filesize
192KB

Download
memory/1732-9-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/1732-11-0x0000000000CF0000-0x0000000000D20000-memory.dmp

Filesize
192KB

Download