vobfus | c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e

General

Target

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
Size

763KB
MD5

bd36f91fe119d280786a82aaca03a587
SHA1

1ded7f789ab95915569de4994bafd23e5c68e213
SHA256

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e
SHA512

7dd9f9a1a8da8bd7ea235afdc06f9c5e7719af3760e4aa654062a5d24e1849c5331e8e0284ffd103b1eca9b2442400c815fcc91aa5f8e9343807d1a5c036843a

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:

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.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"	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.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"	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.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:

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

pid process

1688 c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

pid process

1688 c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

pid	process
1688	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
1688	c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe

C:\Users\Admin\AppData\Local\Temp\c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.exe
"C:\Users\Admin\AppData\Local\Temp\c8483a8cf7f7ffdf949a91dff58716d1a39d5f1488d8a9d004ba66df00277c4e.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:1688

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/1688-59-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads