vobfus | bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0

Analysis

max time kernel
119s
max time network
20s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
23-11-2024 19:23

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General

Target

bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
Size

204KB
MD5

6f6635d53b53159813b21a6468a76342
SHA1

88d6d117fef10ba3766397f88918ee485456f7fb
SHA256

bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0
SHA512

264dda4ab4d52db25ac07d7ba7ed6822e2018f2fb39e5abf294ebd37e4512f566742c33b54d0b38ffee1b90488115a7cb72fb61ed2a1336f5b619216d9d76410
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1y:Xo/BHng5HaVG4G/1z+QVMbg1y

Score

10^/10

vobfus discovery persistence worm

Malware Config

Signatures

Vobfus
A widespread worm which spreads via network drives and removable media.
worm vobfus
Vobfus family
vobfus

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1760	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1760	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1760	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
1760	bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe

C:\Users\Admin\AppData\Local\Temp\bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe
"C:\Users\Admin\AppData\Local\Temp\bd219319ac2a70d9648b16320bf50f76353633a7cbc07d651c8abd38236abaf0.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:1760

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\AG58FPQON.exe

Filesize
204KB

MD5
f57e20a8a84d80546fe49cdf571cce26

SHA1
5e5763226793b007064d69f143d5f7501317184a

SHA256
098e876bcdab33262134651d8af288674592e686883c5c82e11e16995a42f6e1

SHA512
944b42d67921cef95016c2167890a9e805d75167d409f1b1b64e9db19c0db4808afb2d5c9e72b04aaa79e95d61a9a2b73cb8610ced8b3c2b88d01e36c95da11e

Download Submit
memory/1760-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1760-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1760-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads