vobfus | a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0

General

Target

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Size

574KB
MD5

011b2875be9ca2bcea3c43e63f400e0a
SHA1

1853ffa2ef4ada9f9a1c4a7be4f92a7b4576ac75
SHA256

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0
SHA512

941ceca0dd09fef3276a8f471b76872060c8618d409ee7ae8ab35d71f9c98937c482281c572af94a337feaddd6e40cee61ad218deb14f137d20fc76cba018d2b

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:

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Key created	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Key created	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2199625441-3471261906-229485034-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

pid process

1860 a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

pid process

1860 a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

pid	process
1860	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
1860	a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe

C:\Users\Admin\AppData\Local\Temp\a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.exe
"C:\Users\Admin\AppData\Local\Temp\a8119bd657575eb0702ec5aac03df6b74d3210b2ed8b1cc4e0f218dafe45ede0.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:1860

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

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Downloads

memory/1860-54-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads