vobfus | e81af08d77f8c65f1c5a7e2701b6eaca1b454f839802466d9e23cd735a3f2687

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
06/01/2025, 06:11

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General

Target

JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe
Size

200KB
MD5

12cd6efc662011af5bc84ab5ae8e0117
SHA1

57feb9663393e65fd5aedc2e278749223a7ad0df
SHA256

e81af08d77f8c65f1c5a7e2701b6eaca1b454f839802466d9e23cd735a3f2687
SHA512

4ab7aa98bfe8a7a99d31c73c4e4ee723b5372bd126e7f4920498dcb9e6f2a5f63a228a49c8064fde4835256c72af5b698d2b2ed0f78f82b93ccf849e45c02dda
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1+S:Xo/BHng5HaVG4G/1z+QVMbg1+S

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_12cd6efc662011af5bc84ab5ae8e0117.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.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_12cd6efc662011af5bc84ab5ae8e0117.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.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_12cd6efc662011af5bc84ab5ae8e0117.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	18	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	47	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2976	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2976	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2976	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe
2976	JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_12cd6efc662011af5bc84ab5ae8e0117.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:2976

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
200KB

MD5
bb16b10b7b03bc20601ed0d65d27f20e

SHA1
705284dc58e9e49c8f7c5a13e35ba74eb34d6cd3

SHA256
a4b444df4cca3bdd442acc288f99a3dce07caf7d2bcce1dda4ac2e11740e092a

SHA512
c98a0e7b14303147417c9000cc4c10001a86e9ce59737f46fa8d1bd5fce21f88b7221bd32eeb4ef8c6501f73ec736b1eb91efd4ca2098eafcaf969b990b5c67a

Download Submit
memory/2976-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2976-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2976-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads