vobfus | 787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e

Analysis

max time kernel
120s
max time network
100s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-11-2024 14:48

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General

Target

787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
Size

204KB
MD5

f5198e209ac3e568b8accf36574097f2
SHA1

8e6a98678ce976f327eba83e4d7baa5d37896014
SHA256

787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e
SHA512

8783d0c1911c707ac99e0724b7964f8a47116be447e64518ee1771cdd6c17120768ff8187315c2e521dff05ee0c94c9527261b9593c456329bbf1f1c9bc7e9c6
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1h:Xo/BHng5HaVG4G/1z+QVMbg1h

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
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.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"	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.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	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe

Script User-Agent 1 IoCs

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

description	flow	ioc
HTTP User-Agent header	20	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
640	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
640	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
640	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
640	787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe

C:\Users\Admin\AppData\Local\Temp\787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.exe
"C:\Users\Admin\AppData\Local\Temp\787f76751789d9d8c34e416ff369bdecce637277e45b0a97721075f05cb93b6e.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:640

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
6cf80bd3e2486a7fa0321f42c708ef1e

SHA1
0bfe79bd50d09d59b85abc683539275a72209d29

SHA256
365b8b950ea4bfd2aab1253eb58815f1f6771352c8c59d38637cf14cd1e58339

SHA512
3adc24956a1d680e0631117d489738f986549c1710981eabd65f4cef5d2fe7b94419718849b951ee1c27bb72fc41008d0fd85688adfa78d6b7b5ac7a8932394a

Download Submit
memory/640-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/640-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/640-60-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/640-274-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads