vobfus | 83a048622a480815ca00d023a796fe6caf83bae6a4a5006fa5e991016c102c97

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
07/01/2025, 02:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
Size

204KB
MD5

48a45451b72c7b3b6cb8bb9861a0b3c2
SHA1

88a258bfeead3444a9706b7a4a7a843bca6308be
SHA256

83a048622a480815ca00d023a796fe6caf83bae6a4a5006fa5e991016c102c97
SHA512

e88d70f4742a984fef3cb916c28eff9222ae4748431f9c9b426ad31372291732b47f50e72c715260678384144677cbf70b8395feb3580ee99743faa85877b4fe
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_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
Key created	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.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_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.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_48a45451b72c7b3b6cb8bb9861a0b3c2.exe

Script User-Agent 2 IoCs

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

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2084	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2084	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2084	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
2084	JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_48a45451b72c7b3b6cb8bb9861a0b3c2.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:2084

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
dc44e418a53c31229a9da0b9c15444a1

SHA1
737246aea79bc2f6f5ecfed08f85c89e8f0d3267

SHA256
8c0646538263a7d74d2ff1ecf3cb029a38528b74fc78c3ed623c4c56ff495c98

SHA512
9631636d51b8a8d823ce3f6fa422cca3c125eeb67cecc2f9a9718ef8ecaa8b446d508db10bfa9d3f331f3176a54614506a36ca5b41a0e4d67b3d1f8d59ce22ed

Download Submit
memory/2084-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2084-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2084-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads