vobfus | f25b82c8ed60dab26830a9c1937368932d1f6e1eabb040fc3460369333366823

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2025, 06:31

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Size

204KB
MD5

dd50851454222c21f9db1210aa0e0f8b
SHA1

11accb706b7b5f1b388ca4cea6089afb658bb297
SHA256

f25b82c8ed60dab26830a9c1937368932d1f6e1eabb040fc3460369333366823
SHA512

cbc62625432e4a0d0a48b283d64092d0de6977d934e1b5b1c5ac9991f9770858098569ede61e0a92d3818a4b1b18a7a705949f2737ef95930c3f7c7f6abfa4f0
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_dd50851454222c21f9db1210aa0e0f8b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.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_dd50851454222c21f9db1210aa0e0f8b.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.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_dd50851454222c21f9db1210aa0e0f8b.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	14	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
1588	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1588	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1588	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
1588	JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dd50851454222c21f9db1210aa0e0f8b.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:1588

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
8cd50ecd482b2218385833f66a10b8f6

SHA1
099c0f2a0b2fad5e8e875bdbea4082e77810767f

SHA256
0e2e23e8e13708f2b9e185d9344302e6990787bc1594d85de300fef38fa1f093

SHA512
5393bae67c04a50942970148d30e72fe1215f1dab9fe22aba147acbe9aa1cca15523650e1fc5cec0a46d86501faad172f9443f402033e138ba6260b08cc60e11

Download Submit
memory/1588-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1588-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1588-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1588-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads