vobfus | f25b82c8ed60dab26830a9c1937368932d1f6e1eabb040fc3460369333366823

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 06:31

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General

Target

JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Size

204KB
MD5

dd50851454222c21f9db1210aa0e0f8b
SHA1

11accb706b7b5f1b388ca4cea6089afb658bb297
SHA256

f25b82c8ed60dab26830a9c1937368932d1f6e1eabb040fc3460369333366823
SHA512

cbc62625432e4a0d0a48b283d64092d0de6977d934e1b5b1c5ac9991f9770858098569ede61e0a92d3818a4b1b18a7a705949f2737ef95930c3f7c7f6abfa4f0
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1:Xo/BHng5HaVG4G/1z+QVMbg1

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	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Key created	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.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"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.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	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

Script User-Agent 2 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)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2428	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2428	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2428	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
2428	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.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:2428

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
bd631dd5b2150c425edc417198c61051

SHA1
f9f778fb00890884006b67e2aef24021b8814a42

SHA256
eee1e45ede1d71174df698cf65bb99e4a811e9b45b06d9aed3c7ef2c3ba9a3f7

SHA512
548d5913e405ca81c7e67ae22702f2561b7a79eede0cbf8667023879217a704f43e6a80196898b7284b764139ebb02201974b551ae7ef99ad6febc409fbe5c0f

Download Submit
memory/2428-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2428-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2428-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads