vobfus | 9bdeb6e89d24c17de80309aa7287b09a81e57b48282fb1f9c8a1c3795cd281aa

Analysis

max time kernel
150s
max time network
140s
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, 15:53

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
Size

204KB
MD5

cc392c94ddba2c4417bb12637b3cd18c
SHA1

0b8d888f7ac0fb4a5e6c13fcfda0519a29213022
SHA256

9bdeb6e89d24c17de80309aa7287b09a81e57b48282fb1f9c8a1c3795cd281aa
SHA512

b787a05e74ec6b1cef12a2bc86f2c0cd02d30626adcfb379d25aa1538093491d6f9780300002b32a38f5eb0f0a58a3b291468998f577f01e59781bf395446448
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_cc392c94ddba2c4417bb12637b3cd18c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.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_cc392c94ddba2c4417bb12637b3cd18c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.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_cc392c94ddba2c4417bb12637b3cd18c.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	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4992	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4992	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4992	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
4992	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.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:4992

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
5bdd8448fdc1733eb01bf6e69eacf14f

SHA1
7bb7662e7b43a74387f1e8d92806ed2df23f3511

SHA256
4286c8ba4ee785b587864234e4117cf4ef4712437564c9bea1d8708969ec53cc

SHA512
5163ff83b867168f45bc61e5fe63f890503313efb6877f9ebaaa40df71b1a40e6a8fa374a199ec005df618fe067189f43b8f7739946d060b4aacb7b486ca3c06

Download Submit
memory/4992-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4992-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4992-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4992-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads