vobfus | a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050

General

Target

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
Size

1.1MB
MD5

ba2694063e0ccd1fd0cf52cbe60c894c
SHA1

6383f4fbeaba6c8c7ffa7a76829c9abec38de9c1
SHA256

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050
SHA512

f6e73af6b2d7a595650cda16d6f0746d6d4b998d324486c5e97f9e6cdb7edd7ebee38062ec2c8a4b3d3db9a7b8f5455fb0d35672a3baf491440a04729b60bc55

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:

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.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"	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.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"	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	15	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:

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

pid process

2016 a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

pid process

2016 a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

pid	process
2016	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
2016	a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe

C:\Users\Admin\AppData\Local\Temp\a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.exe
"C:\Users\Admin\AppData\Local\Temp\a6753c11bba19d8663cab77557e92e32b6a97f9d3a924f64079f089a100e1050.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:2016

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads