vobfus | fc20034435ecdb0fb217c093f885e0a61c23fad743a90c2859e00b2ce9b3fccb

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 16:28

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General

Target

JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe
Size

204KB
MD5

2841d9dfd08147d3576f7544b8ecc1ed
SHA1

5430142d88f3ea81244db6e8a3af85edfa945753
SHA256

fc20034435ecdb0fb217c093f885e0a61c23fad743a90c2859e00b2ce9b3fccb
SHA512

e234a8bec46e30d88bc3ef80cb828af9592237be3971a66ea935a9366ae8c43a68cfc36493de4ba0a7e263604544a6d69e857119a7751f323ec95f1d7d44e131
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_2841d9dfd08147d3576f7544b8ecc1ed.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.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_2841d9dfd08147d3576f7544b8ecc1ed.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_2841d9dfd08147d3576f7544b8ecc1ed.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_2841d9dfd08147d3576f7544b8ecc1ed.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_2841d9dfd08147d3576f7544b8ecc1ed.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	46	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1964	JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1964	JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1964	JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe
1964	JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2841d9dfd08147d3576f7544b8ecc1ed.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:1964

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
c74ca464ceb9f1f99d88c0963f7c4adc

SHA1
e969202ff318c197edf264939fda433b051011b7

SHA256
495ac63de2fa21dec69decc4a708f2c9ccd07c6f5677d6f3226e6c1e30f5a43c

SHA512
a9d772b63fa3824697d16c0077cef920997285248fc8de85cd73a6463511654cc4bbba5fd48686a7147e98cc199b1bdabb770c283ec93ac7d7c6bfb4e76d5bc1

Download Submit
memory/1964-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1964-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1964-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1964-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads