vobfus | aab5338df8f02cc24150b634d3cb6721e42fe28ccab7f95ab4f21803ed0ad7f0

Analysis

max time kernel
149s
max time network
151s
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, 15:01

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General

Target

JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe
Size

204KB
MD5

2a1fcaa75d27181832db1a57ac78fdd5
SHA1

7181de60f98476d66ec834ebd7f487105c19ed43
SHA256

aab5338df8f02cc24150b634d3cb6721e42fe28ccab7f95ab4f21803ed0ad7f0
SHA512

cd522962166ad850e3bca969c80a98d13aa66dff8840ed16791c6a98f201f0781ae24dc42204ec4ac778059f6849a7b6793bd51d1f8a80eea55b9586a9bf947f
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_2a1fcaa75d27181832db1a57ac78fdd5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.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_2a1fcaa75d27181832db1a57ac78fdd5.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	43	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1340	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1340	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1340	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe
1340	JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2a1fcaa75d27181832db1a57ac78fdd5.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:1340

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
b6dbaefe50839bf080a762aaf8e5ce73

SHA1
71bb6f4aa2811ce0ac15a4ca7ef316f2b1dd8e1f

SHA256
b1b551679518dd9bdae9a1b9ceff22a2d5cbc36ad9a11baaa378b0e04b838d9b

SHA512
e7657ed9da422b04cad11d4b119882c98f4db21e3acecdb0fee067308968eaf6030c75c4896b23863105631bc6284be242900c38d76cba894daff6380a0a2900

Download Submit
memory/1340-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1340-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1340-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1340-281-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads