vobfus | 7a15cef4876112ee08d52211595df8607159e3f1af69bcbc19f722ec014a1699

Analysis

max time kernel
150s
max time network
142s
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 05:32

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General

Target

JaffaCakes118_8e2d639dde8e416332202439a4135710.exe
Size

204KB
MD5

8e2d639dde8e416332202439a4135710
SHA1

a3c795eb4e235723911096a8f63f8dda74f4c5b5
SHA256

7a15cef4876112ee08d52211595df8607159e3f1af69bcbc19f722ec014a1699
SHA512

1f36ea10c4f68e676f6c54d0cc7e68f6cb7c4fdcf2437514095dca6d7fd5511b82aba281d1ab7587b3ce2fdef605e4b28c51e1ae45da03bd1d06d7ae7cc031e1
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_8e2d639dde8e416332202439a4135710.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_8e2d639dde8e416332202439a4135710.exe
Key created	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_8e2d639dde8e416332202439a4135710.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_8e2d639dde8e416332202439a4135710.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_8e2d639dde8e416332202439a4135710.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_8e2d639dde8e416332202439a4135710.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_8e2d639dde8e416332202439a4135710.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	46	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	15	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1484	JaffaCakes118_8e2d639dde8e416332202439a4135710.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1484	JaffaCakes118_8e2d639dde8e416332202439a4135710.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1484	JaffaCakes118_8e2d639dde8e416332202439a4135710.exe
1484	JaffaCakes118_8e2d639dde8e416332202439a4135710.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e2d639dde8e416332202439a4135710.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8e2d639dde8e416332202439a4135710.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:1484

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
4e6a93409a687a7822418015594e3d42

SHA1
97b896d6978a6242917b88f08190e20da26111f9

SHA256
b8c1bc8ad7a9fa112092e5ee89b17f5254754e7df2b74afa8e7aadfe37e8a764

SHA512
b8a7bf2d51c1552f7ca30e6ec534559c09fa2bd5dd967cfe3109f39a21c5d0b558dd325f17c7e2b19f5e4b232216b0e21811c2b6c037ae4ace5f4914e79ce5f9

Download Submit
memory/1484-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1484-31-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1484-238-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads