vobfus | 61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14

General

Target

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
Size

1.1MB
MD5

b9aa8e1ab7fc0bf176c154c928195909
SHA1

abd0c18d07ec0ba8af6da97d9b84e0f8a6b69368
SHA256

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14
SHA512

699fc5eb6a8b686802bb36af0d56cbdd0388aafc30925f0099c4bdae48ca5d5e6253456efeb0f697770a6ea8a8a3a3e23f98404990336223664ee2bd074e1f9e

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:

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.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"	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.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"	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	27	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	28	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

pid process

2204 61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

pid process

2204 61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

pid	process
2204	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
2204	61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe

C:\Users\Admin\AppData\Local\Temp\61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.exe
"C:\Users\Admin\AppData\Local\Temp\61bc6ce0bde4c2f8c55ba136e9637758658fe0f1fde991032b0f40bf2ed0ef14.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:2204

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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