vobfus | f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59

General

Target

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
Size

572KB
MD5

bf3f312e1e7d0725f0ae8f414fef84fc
SHA1

ec1a5f5e039bb32fb8b12c94eacaa42469cab5ad
SHA256

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59
SHA512

382f851278ab3c5d00665d3b87f7f369005b890ee415b7bffbf23f2035dd68d78efc83c7548e122b6108db78242f63375036dff161f0c8e696c66873cd8a4784

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:

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.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"	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.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"	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.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:

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

pid process

1048 f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

pid process

1048 f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

pid	process
1048	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
1048	f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe

C:\Users\Admin\AppData\Local\Temp\f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.exe
"C:\Users\Admin\AppData\Local\Temp\f99e8740aa56da7bff3cd14ee301ca36993a5814513ff2cef3410b9d396afc59.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:1048

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/1048-59-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads