vobfus | 426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b

General

Target

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
Size

571KB
MD5

cef81112287a623ee228f3a803f253c6
SHA1

3f63d838832876589704ba5e9fabdcc8b2f96e88
SHA256

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b
SHA512

d51d1ad8daf6ebf3f5b825b47f43c6e8a3babca92457c4567ecdc054fa1528cc68dbdcfe4592f15085d682b1d5a984004fa5c2100d65437bf16328733afba122

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:

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.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"	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.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"	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.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:

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

pid process

1116 426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

pid process

1116 426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

pid	process
1116	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
1116	426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe

C:\Users\Admin\AppData\Local\Temp\426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.exe
"C:\Users\Admin\AppData\Local\Temp\426b1f446f677435e50b196ad62c3013949359837a4d8cac38657a7f7e4fc92b.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:1116

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/1116-59-0x0000000000400000-0x0000000000434000-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