vobfus | 7de5222d9963c3857415332a94e40297f56973e108e3ca63ecd66e508c5fa634

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
08/01/2025, 07:12

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Size

204KB
MD5

925b193be8aef8b7e6bc0336e1398573
SHA1

3e630a05cbf83ef4e9015c103897f191babd6b9a
SHA256

7de5222d9963c3857415332a94e40297f56973e108e3ca63ecd66e508c5fa634
SHA512

4e58d2e656d9ef73cbc7b0c1b0c887bd0d9750d51b45bcfd4fbdb6fbf2f39538d1951d1bbc515f9e2e7710d3935cd327083c015038fca976b0fac209e94ef315
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
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Key created	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.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_925b193be8aef8b7e6bc0336e1398573.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	19	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	42	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3000	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3000	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3000	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
3000	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.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:3000

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
7e51ef64f2129c790e5f5a87bd0c7057

SHA1
a3d76b7877f7385fcc16e4bce2788b82249c894a

SHA256
f9e022865af529d9ea04a8bac840b93ab83ce5a4eb6b28175d1a0a10bbee30e1

SHA512
b8dad4d118e13451606f4c41797e815e2c925c09fe023bc474da580971d90f2d67522ae605ef36f5fc452bb469e561b91e1bc0ed650ea5c31617487e3d0da7c2

Download Submit
memory/3000-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3000-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3000-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/3000-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads