vobfus | 90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221

General

Target

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Size

221KB
MD5

419b59e3addac60daa806eb6e500b1e1
SHA1

a0f3b0d2c49736c6d9a11b1d4ce464323706fe52
SHA256

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221
SHA512

8a49bc285cba0b0489c15abf189a8c8da2a03b608e9a17d66f3e692279afefd9e2d0483eda0cc76c7f07e42d8a46fce972d28d5e2a57a44a2e4177da6f613452

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:

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	6	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

pid process

1888 90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

pid process

1888 90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

pid	process
1888	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
1888	90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe

C:\Users\Admin\AppData\Local\Temp\90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.exe
"C:\Users\Admin\AppData\Local\Temp\90894a0766612ae2c7e6d86d94971db5db165843c9a90d96427cf80442ca3221.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:1888

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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