vobfus | 4003aec5835c1d1bc305ea92b82ec0837946d5a9272eca51fa303a7d45ab8cac

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
06/01/2025, 04:45

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General

Target

JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe
Size

204KB
MD5

0f344c18fc23977f87a5aeb2b3b9facf
SHA1

83bc3be2d6e79a24a160a5fe0fb117e3cd499324
SHA256

4003aec5835c1d1bc305ea92b82ec0837946d5a9272eca51fa303a7d45ab8cac
SHA512

12493dc12c093e53259d05cd60237e68aa83937f6f65fc05626b7d0683286fe9836b9a94df4a78c35d19b00c88810317e1da508709740f2ea7077d99733ff772
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_0f344c18fc23977f87a5aeb2b3b9facf.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.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_0f344c18fc23977f87a5aeb2b3b9facf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.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_0f344c18fc23977f87a5aeb2b3b9facf.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	17	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	44	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2672	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2672	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2672	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe
2672	JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0f344c18fc23977f87a5aeb2b3b9facf.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:2672

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
73d7b4fd9ec7d6a457562168a084be66

SHA1
8498cf98b8e8561364c9f9c3dff7f84495954a4a

SHA256
4468f3df26fc9f7870c09c050037c3cfc65b985120472e478fb86a6ac851aa9a

SHA512
922d7afd0c4abee33dc1a6b3422c30baa128bbf6e765a162360742283e94bffb46de3f8f278d87517a6c22c50c9464ba58381295eb422b7c1de3703e7d3c67f3

Download Submit
memory/2672-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2672-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2672-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads