vobfus | 40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4

General

Target

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
Size

4.7MB
MD5

b61ce76aee35915761460aa951fdde20
SHA1

2b14d480a8adcdcba5bbba1b338960ee2b4e9c84
SHA256

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4
SHA512

a38e81fb7f47f68283e15e261bdfd60d4e11b3cdb8ffb323aeb13ba73632682e9b73bc97f65514c268b4a9ee75e25ffc5ea86fbcabbf9b8f193c07df49e851e3

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:

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.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"	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.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"	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	13	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

pid process

4024 40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

pid process

4024 40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

pid	process
4024	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
4024	40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe

C:\Users\Admin\AppData\Local\Temp\40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.exe
"C:\Users\Admin\AppData\Local\Temp\40d4ac132a90217b907567ba13d4b4e9b880363a16f4b98af6a992dce343b6b4.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

Replay Monitor

Loading Replay Monitor...

Downloads