vobfus | a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0

General

Target

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Size

261KB
MD5

b10acfc0d52e9839030a844ac8e019b8
SHA1

dbfe9064409d8e20abd26d2c3182bbd37f1ce9ec
SHA256

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0
SHA512

c593ccd4ddc49003e6b821b319aaccabe6b8cf012ddfa486c07da86cbac55d1084de70a7e9a93949edf2f7915c4a9a70ff9c6ea2dc445fd772f32d7663d1e25d

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:

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.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"	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

description	ioc	process
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"	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.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:

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

pid process

1688 a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

pid process

1688 a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

pid	process
1688	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
1688	a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe

C:\Users\Admin\AppData\Local\Temp\a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.exe
"C:\Users\Admin\AppData\Local\Temp\a5362ecb500d572fd7c96345c4770aeee08d468c761ec21db4a4da44464636d0.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 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/1688-60-0x0000000000400000-0x0000000000434000-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