vobfus | 16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34

General

Target

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
Size

1.4MB
MD5

b6f25d7d801922e3b8b9ddaa8a6d96fa
SHA1

09496c08bba40755cd6e8440696d5d6209acc9a2
SHA256

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34
SHA512

886643340c02607074dfe5e574244ae7498ca87d73da43ed3d83166c99b45da43e9c998de29e3c04fe3c55a790bd10b2dafac281e432eaaaf440f92c6ec403da

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:

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.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"	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.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"	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.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:

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

pid process

1116 16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

pid process

1116 16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

pid	process
1116	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
1116	16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe

C:\Users\Admin\AppData\Local\Temp\16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.exe
"C:\Users\Admin\AppData\Local\Temp\16f77c00ed4455bebb230fcdc52a041509ea666b2bb55b1eadf4e1c8ff8d2a34.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

Replay Monitor

Loading Replay Monitor...

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

Replay Monitor

Loading Replay Monitor...

Downloads