vobfus | 3d3ffacc2b1643c4929545d07ad8620eebb98a83ee625cc773c62283ca53ac95

Analysis

max time kernel
149s
max time network
141s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 07:02

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General

Target

JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe
Size

204KB
MD5

dde0bcc01652fa7962647cb8827c7c73
SHA1

c036bb8dfe0e7488f5c0c954349e9f0e0b5ed805
SHA256

3d3ffacc2b1643c4929545d07ad8620eebb98a83ee625cc773c62283ca53ac95
SHA512

0bb6e555808ab7546447655c3221d1dbaf0edef733953c9a929e011223705fd1e0496a6360ab9549fde0a311774df29a0d30442571c60585cca58148a0fea45e
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_dde0bcc01652fa7962647cb8827c7c73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe
Key created	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.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_dde0bcc01652fa7962647cb8827c7c73.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2168	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2168	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2168	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe
2168	JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_dde0bcc01652fa7962647cb8827c7c73.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:2168

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
25efb23f184eb2ad1fbbd2eeba520279

SHA1
791f8336c072d3fe5a6e55085e355e85a7627058

SHA256
05d328e546c756ecfe6be6637a6eb3039c4fb052dc80a5717f07313db67382b3

SHA512
279bbccd5014d83653be2b4246c4d05d8f998c33f4b6a53f690e182d1de651d2de5de81e32147dcd2737edcc3da9bfefd611025860dc58c5771d04e8affd09ea

Download Submit
memory/2168-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2168-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2168-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads