vobfus | 842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2

General

Target

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Size

445KB
MD5

c7e7037c20aa648bf2d4f64701222297
SHA1

a9c3cba74cb44cc0c7a614932949d88138a9b8b1
SHA256

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2
SHA512

375e0dd5b30ac5b7499356e1715ee5ecb46f510a1a9e16b0a118ed4fc6658113f646fb74cf024433b8d9601b94a187872ffbf1ecd730e644f07e834b36f02bbd

Score

10^/10

vobfus persistence worm

Malware Config

Signatures

Vobfus
A widespread worm which spreads via network drives and removable media.
worm vobfus

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

pid process

1808 842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

pid process

1808 842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

pid	process
1808	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
1808	842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe

C:\Users\Admin\AppData\Local\Temp\842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe
"C:\Users\Admin\AppData\Local\Temp\842c5f8544a6bc06848e9697657df40761f895d498ceb3b04bf817db20e8aee2.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:1808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1808-114-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads