vobfus | a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab

General

Target

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
Size

220KB
MD5

f2e369ff52b446325b2b775f5f0b09c7
SHA1

a851d8915d57c19cada1d96f43559f663bc6956c
SHA256

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab
SHA512

2cd85931e0e483a8e16742b43872dcaa4667b9602c37a154b8005675ecc80695b80c16b9cf9259d9ba4efc8b4a0c39403037ad43d8898efa82193e47b762955a

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:

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
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"	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.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"	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	16	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

pid process

4024 a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

pid process

4024 a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

pid	process
4024	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
4024	a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe

C:\Users\Admin\AppData\Local\Temp\a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.exe
"C:\Users\Admin\AppData\Local\Temp\a16ecee44ae6eec6d361b98ebc07cf69a858bfb1fd6b76e6cc9ada6b8e111dab.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:4024

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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