cf52ea9d621dca6f64563eb8e09182f9b8e2afc1e6d97eab66bed940167aad7b

Analysis

max time kernel
134s
max time network
105s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
20/05/2024, 06:20

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General

Target

cf52ea9d621dca6f64563eb8e09182f9b8e2afc1e6d97eab66bed940167aad7b.dll
Size

223KB
MD5

b5127110a2c465bbca75c218b63f1d2e
SHA1

1630765496366e35e61fba2a8d30639c2a2682b5
SHA256

cf52ea9d621dca6f64563eb8e09182f9b8e2afc1e6d97eab66bed940167aad7b
SHA512

f4fe06854edc07da63fece0ab2950ee1ee20433d709334fa2ffc64d39d20193cefc6b25e562d0ff5da2a6a7d356f520d4e451c6ce328224f0c1a06c7a303c1d4
SSDEEP

3072:6huf5AUWGIcvWJvK2aguyJZdlGZxIOtY81fs2lQBV+UdE+rECWp7hK+:ZBAUWGOVaguyWLIBV+UdvrEFp7hK+

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/0x000800000002340d-1.dat	acprotect

Loads dropped DLL 2 IoCs

pid	Process
3740	rundll32.exe
3740	rundll32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000800000002340d-1.dat	upx
behavioral2/memory/3740-7-0x00000000010F0000-0x0000000001120000-memory.dmp	upx
behavioral2/memory/3740-6-0x00000000010F0000-0x0000000001120000-memory.dmp	upx
behavioral2/memory/3740-11-0x00000000010F0000-0x0000000001120000-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
4148	3740	WerFault.exe	82

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3740	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 3740	1160	rundll32.exe	82
PID 1160 wrote to memory of 3740	1160	rundll32.exe	82
PID 1160 wrote to memory of 3740	1160	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf52ea9d621dca6f64563eb8e09182f9b8e2afc1e6d97eab66bed940167aad7b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1160
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cf52ea9d621dca6f64563eb8e09182f9b8e2afc1e6d97eab66bed940167aad7b.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of AdjustPrivilegeToken
  PID:3740
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3740 -s 700
    3⤵
    - Program crash
    PID:4148

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3740 -ip 3740
1⤵
PID:1224

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/3740-7-0x00000000010F0000-0x0000000001120000-memory.dmp

Filesize
192KB

Download
memory/3740-6-0x00000000010F0000-0x0000000001120000-memory.dmp

Filesize
192KB

Download
memory/3740-9-0x0000000010000000-0x0000000010025000-memory.dmp

Filesize
148KB

Download
memory/3740-11-0x00000000010F0000-0x0000000001120000-memory.dmp

Filesize
192KB

Download