vobfus | 736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29

General

Target

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
Size

384KB
MD5

2d8e18511e7fb2cff78e57ae36ae6343
SHA1

fb4a53b31c729b11dbfd58116be7e00fd833c1cb
SHA256

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29
SHA512

8ade8599baa8866f76e4ffad19350ab3d054f34935c575862085447fb75ea02ee4677cfe97721d65a52b20217a0ed0fba272a1e566670aec6efd2dd4c6c5eec6

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:

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.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"	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.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"	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	5	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

pid process

2000 736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

pid process

2000 736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

pid	process
2000	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
2000	736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe

C:\Users\Admin\AppData\Local\Temp\736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.exe
"C:\Users\Admin\AppData\Local\Temp\736bdd6cf76ab4cf6153d293b30ee32b462018767936536564bb602612b5db29.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:2000

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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