vobfus | 2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0

General

Target

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Size

198KB
MD5

96dbd84c3ef911d5f9b3e96794149075
SHA1

d8d32ed168fde5469fea88883092f593c7de37b1
SHA256

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0
SHA512

c6471a8ace60a19adb6c34f4be362c4333c9eb3d4922487e1617f83dda0618b7cf898baefd26c700faf3bcae0c9ca04dd8136d8f1c7cf1f35e72d0ad6ffe5a80

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:

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.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"	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.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"	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	21	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

pid process

3892 2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

pid process

3892 2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

pid	process
3892	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
3892	2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe

C:\Users\Admin\AppData\Local\Temp\2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.exe
"C:\Users\Admin\AppData\Local\Temp\2f732331583ef95a9c883bd07a4ff6001e27613a80928a148d6b3af6257772f0.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:3892

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/3892-114-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads