4f18016d8469987065818b6f9fc42e9b8051f1c107910f6d281ad30aa1d55b76

Analysis

max time kernel
141s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
21-05-2024 14:33

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General

Target

4f18016d8469987065818b6f9fc42e9b8051f1c107910f6d281ad30aa1d55b76.dll
Size

1.1MB
MD5

7899289a0652161652b736446af2a8dd
SHA1

a4dea0add5e2ae9b2855e7b8db3fdbc53c7ee1ac
SHA256

4f18016d8469987065818b6f9fc42e9b8051f1c107910f6d281ad30aa1d55b76
SHA512

075699b7ba90d55a273c4a684f75df987442053b186b7c95b77469b348b69ef93d87961faeff7c3057a8679396e84e44ee52f6960a4ebc377b9fcd07b703da6e
SSDEEP

24576:V2mj42MEVQPGEozkSYAuX/7DkbSrh/qtoT/cgB8SnLZrEH7O:xjnMEVQu5kSEvkurNqtoTkgCSnV

Score

8^/10

persistence upx

Malware Config

Signatures

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	acprotect

Loads dropped DLL 1 IoCs

Processes:

rundll32.exe

pid process

3496 rundll32.exe

pid	process
3496	rundll32.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
C:\Program Files\Common Files\System\symsrv.dll	upx
behavioral2/memory/3496-4-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3496-7-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Drops file in Program Files directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Program Files\Common Files\System\symsrv.dll rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 3496 rundll32.exe

description	ioc	process
File created	C:\Program Files\Common Files\System\symsrv.dll	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	3496	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 4924 wrote to memory of 3496	4924	rundll32.exe	rundll32.exe
PID 4924 wrote to memory of 3496	4924	rundll32.exe	rundll32.exe
PID 4924 wrote to memory of 3496	4924	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f18016d8469987065818b6f9fc42e9b8051f1c107910f6d281ad30aa1d55b76.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4924

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f18016d8469987065818b6f9fc42e9b8051f1c107910f6d281ad30aa1d55b76.dll,#1
2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of AdjustPrivilegeToken
PID:3496

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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/3496-4-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3496-7-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download