vobfus | fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68

General

Target

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Size

1.4MB
MD5

b745c579d6d0946cd804b7ab8f6d92c9
SHA1

7f325bed897abcd12938cf8010060e81b2f53507
SHA256

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68
SHA512

719ec121753c4f30b444bbca6408889f06e8a64559499323a7c2ff645edf55bf80a72b4001cb7071667b4e8a8291ae08a851de3732f76ed936cae56a69f26c16

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:

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.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"	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

description	ioc	process
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"	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Key created	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

Script User-Agent 2 IoCs

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

Processes:

description	flow	ioc
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	27	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

pid process

3904 fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

pid process

3904 fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

pid	process
3904	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
3904	fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe

C:\Users\Admin\AppData\Local\Temp\fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.exe
"C:\Users\Admin\AppData\Local\Temp\fcf2af758adc0444801ec104718a9de931d9812f09ff84850b0977c8a2056f68.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:3904

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/3904-114-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads