9b2753f9201524aa6c5c2ceecf91ed3d6e5c0ff3cc82742aa537f22e675d6730

Analysis

max time kernel
119s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 18:32

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General

Target

4e421b1e29bf7bc803d4aa0eec7310e3.dll
Size

184KB
MD5

4e421b1e29bf7bc803d4aa0eec7310e3
SHA1

78bccde6a27eb00af755d339e89acd600789fd34
SHA256

9b2753f9201524aa6c5c2ceecf91ed3d6e5c0ff3cc82742aa537f22e675d6730
SHA512

b0d64dbed63032171f9e53b25d76d7373efc8cc69a189fb4a75b32c2550a6ae97d61a05422e59dce7ec8a9b42af221cb6fc176a386fe022012448fd3b5e5f386
SSDEEP

3072:cwwB/NTI9MrX2Ow7CpfA/5v8Ur1Lni7vjqf7rT+Otrcot:wB/PIf5gjGvTT5t

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\rqbmvpso = "{6A4C42FA-CEFB-4D2E-A084-22C5A0471086}"	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6A4C42FA-CEFB-4D2E-A084-22C5A0471086}\InProcServer32	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6A4C42FA-CEFB-4D2E-A084-22C5A0471086}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{6A4C42FA-CEFB-4D2E-A084-22C5A0471086}\InProcServer32\ = "C:\\Windows\\rqbmvpso.dll"	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25
PID 2472 wrote to memory of 2244	2472	rundll32.exe	25

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4e421b1e29bf7bc803d4aa0eec7310e3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2472
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4e421b1e29bf7bc803d4aa0eec7310e3.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Modifies registry class
  PID:2244

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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