vobfus | 5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7

General

Target

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Size

1.9MB
MD5

bc9737888f834cdb1bb6462993fcbe76
SHA1

36147eaa29bb38f1fe4bd027457de7bb851ab29b
SHA256

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7
SHA512

12b3d5eef66175dd8e9278aebc362994a490e8e500a40a0b7ec066db6ea2e0a70306e1c01593c281666b34dc5b3fd2454cc831f243e1e997d5ba26c6474eb48c

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:

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	13	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

pid process

3876 5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

pid process

3876 5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

pid	process
3876	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
3876	5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe

C:\Users\Admin\AppData\Local\Temp\5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.exe
"C:\Users\Admin\AppData\Local\Temp\5137cc19757bb7ca9fbe88ca1606ad6c83856b9635238f5915d1494a098a8ae7.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:3876

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/3876-114-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads