b0a3ecb796483d5df7ac195974410c3ae091e9d7c4e172fbd1fe573546e6d677

Analysis

max time kernel
148s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 06:39

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General

Target

b0a3ecb796483d5df7ac195974410c3ae091e9d7c4e172fbd1fe573546e6d677.dll
Size

223KB
MD5

8bd997d09cb45ab31de2fe610dbb6028
SHA1

ffe03dc1328e9a146d2b3249177f4f02c8da03d2
SHA256

b0a3ecb796483d5df7ac195974410c3ae091e9d7c4e172fbd1fe573546e6d677
SHA512

4e29d5e76e1b987b782f6855daa61735bcd70afa709efcf5c2cae720dc5d3274d4b0040c6bbd5883a5f2cdc19c729aa6015765b6af2c4c98d736b239a9f9fd59
SSDEEP

3072:6huf5AUWGIcvYJvK2t4AnAZdlGZxIOtY81fs2lQBV+UdE+rECWp7hKKaG:ZBAUWGgVt4YLIBV+UdvrEFp7hKpG

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/0x000700000002328e-3.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
1396	rundll32.exe
1396	rundll32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000700000002328e-3.dat	upx
behavioral2/memory/1396-6-0x0000000002DC0000-0x0000000002DF0000-memory.dmp	upx
behavioral2/memory/1396-10-0x0000000002DC0000-0x0000000002DF0000-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
4232	1396	WerFault.exe	83

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1396	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 1396	224	rundll32.exe	83
PID 224 wrote to memory of 1396	224	rundll32.exe	83
PID 224 wrote to memory of 1396	224	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0a3ecb796483d5df7ac195974410c3ae091e9d7c4e172fbd1fe573546e6d677.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:224
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b0a3ecb796483d5df7ac195974410c3ae091e9d7c4e172fbd1fe573546e6d677.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:1396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1396 -s 712
    3⤵
    - Program crash
    PID:4232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1396 -ip 1396
1⤵
PID:4472

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/1396-6-0x0000000002DC0000-0x0000000002DF0000-memory.dmp

Filesize
192KB

Download
memory/1396-8-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/1396-10-0x0000000002DC0000-0x0000000002DF0000-memory.dmp

Filesize
192KB

Download