vobfus | aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc

General

Target

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
Size

221KB
MD5

b43417d1d2ecf21e153fb25c17b7782a
SHA1

335c63dbedaa19d6a53aef11a8710ff25f7ad982
SHA256

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc
SHA512

0c1deb022681f302aead6d06d68b092ce05db77e7807528a3047fed92d238e8dd0cecddb9e183d1b09c1da9fdc91b9958f62ec7fdb6f6076f0b8bba0464d1709

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:

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.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"	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.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"	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	21	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

pid process

3972 aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

pid process

3972 aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

pid	process
3972	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
3972	aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe

C:\Users\Admin\AppData\Local\Temp\aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.exe
"C:\Users\Admin\AppData\Local\Temp\aac389699b23ed3e257fc4f015bbe845fcdffc15e4ed3f556b7761a28969b4fc.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:3972

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

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