vobfus | dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992

General

Target

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
Size

384KB
MD5

b5922c94c867f3bab84bdb8db2a2c255
SHA1

cd572d0ab72dc270dc30cd188c56f40dec4cb24f
SHA256

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992
SHA512

8e4fdf9710eece062984e719842325e0b0e21d151a64894511acfa0611b8622b96b904e00c1f276944310b483ea0c7a7f267176141dac7d673e42cdacf6e09eb

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:

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.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"	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.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"	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.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	22	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

pid process

2256 dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

pid process

2256 dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

pid	process
2256	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
2256	dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe

C:\Users\Admin\AppData\Local\Temp\dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.exe
"C:\Users\Admin\AppData\Local\Temp\dff227722f36f8fc92f96450f93b84244c33e121f13f1eb7eaf7c21ddedf5992.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:2256

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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