vobfus | da35e3f8dc769cf2b0b6f34ed806e1daf8834df2de0ddfa698f68172ed1f457f

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
09/01/2025, 08:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
Size

204KB
MD5

c3df5ee4f9cbe2f10b1d8a832ad94896
SHA1

28df1646f7fe0de2cb463a154f7bc3bbe0b4e188
SHA256

da35e3f8dc769cf2b0b6f34ed806e1daf8834df2de0ddfa698f68172ed1f457f
SHA512

78ca83d8fff0f2a27fabdca5d10a5bba19f9f08ff53fb243ba16206fd963d9919bc116a0e273dd1454eed992f60fdcc14463f1bea7ac870a2e25d1e964d26b0b
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_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.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_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.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_c3df5ee4f9cbe2f10b1d8a832ad94896.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1048	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1048	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1048	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
1048	JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c3df5ee4f9cbe2f10b1d8a832ad94896.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:1048

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
204KB

MD5
4a3b5906cfef7d9a990061da9dcebe6c

SHA1
686e60fc98b2afb13359681aea07722e5e9daefc

SHA256
7ad96a8ae09c022a009c04129d681f9d9b41efb369b156d40c088f14ec0d4eb0

SHA512
f502ab23d2f0f579aceeb1ca6d693ae8fe55f64fa4e876c94840aa4c3252c168be0cba6b453c80a34eb454e024ea205efc8b9aff69b4139da8ce5f63ad7da974

Download Submit
memory/1048-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1048-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1048-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1048-281-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads