vobfus | 3799bc9954fe618d429352d8c17fea1ec907f6600e5d4602434d7dd65f8a0140

Analysis

max time kernel
149s
max time network
143s
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, 16:44

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe
Size

204KB
MD5

cd1cf7347d77286f93b8987b351f1b2f
SHA1

b3fa19a6f07b03e2ce7eb0a8f205bae529f85b87
SHA256

3799bc9954fe618d429352d8c17fea1ec907f6600e5d4602434d7dd65f8a0140
SHA512

9bdfb49df51fa35d23cb99989e3de64475f8dc34aa7d85015f66aeea4a76214f68476fca35677fe1687742dde3e354c513ad148486e67489e0ed8ec865854ca6
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_cd1cf7347d77286f93b8987b351f1b2f.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.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_cd1cf7347d77286f93b8987b351f1b2f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.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_cd1cf7347d77286f93b8987b351f1b2f.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
2296	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2296	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2296	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe
2296	JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cd1cf7347d77286f93b8987b351f1b2f.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:2296

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
5626fa01dbf466f7b3830748779058af

SHA1
588ef9e17b872718a473dc3fb3eef98ce9b5c528

SHA256
42f0d1d8305e11ef30b4521b20d7f66fe6cc51654775dcc6ed00086d060261a3

SHA512
31b4b2549cd59e53600277e98f24dd060cd261ed476accf111f61c0553deba6042ed68b9b9406deadf8f1ec0338a2fceaa847cd59ccbc0b469c7eee7bb509661

Download Submit
memory/2296-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2296-31-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2296-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads