vobfus | eafb3cd577be36d6e5dfecc609a710dadaea9e7295237c92e20c081965e9bbb0

Analysis

max time kernel
149s
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, 08:17

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General

Target

JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
Size

204KB
MD5

df6da732bb86be8652699d24900f1b51
SHA1

edebbf75f9ef97c64feb523c483148b1aebfe559
SHA256

eafb3cd577be36d6e5dfecc609a710dadaea9e7295237c92e20c081965e9bbb0
SHA512

b32519c767370e5b1c6ce62d36316647afcdf9118223191b0bef93d947dc63f451142d8d5d2f895bc524c1f5cb1ce9eeb379503fde88db40df83cba7ae2395dd
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1D:Xo/BHng5HaVG4G/1z+QVMbg1D

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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_df6da732bb86be8652699d24900f1b51.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\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_df6da732bb86be8652699d24900f1b51.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_df6da732bb86be8652699d24900f1b51.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
1908	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1908	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1908	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
1908	JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df6da732bb86be8652699d24900f1b51.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_df6da732bb86be8652699d24900f1b51.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:1908

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
3d0de89b508df9e1a756c4a27a5ab838

SHA1
13a1f156e445bb1d49946021955ff00180714b20

SHA256
a8963497768f8e2b79b9b8e11dacfe0109cdb32f967d7a594df7f23418feae90

SHA512
d704c71d07a1986cadc8dbff53f1f7f1133f9e221701676e242e0c0f988cee83e44346b7ab9fe75dabcea0399e43d29ba45f4ec5507aa0c3c2908e6ee8e3c249

Download Submit
memory/1908-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1908-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1908-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads