vobfus | 1a72fcf0697f519234b1d5c95d35cb5b9fe39cc4e526dd315facf70209182c09

Analysis

max time kernel
149s
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
09/01/2025, 22:47

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General

Target

JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe
Size

204KB
MD5

d4477410dde155a3ca27e7ed34b5122b
SHA1

8e12b40690799406305a3bdcdacda7fe989b3e2b
SHA256

1a72fcf0697f519234b1d5c95d35cb5b9fe39cc4e526dd315facf70209182c09
SHA512

11acbef9111e22cee1928979d23bee727f3ceda7faa09f58a4f0bd846a42be6ebb5af64ad5bb041c6063ca1f4e6d78d3802aeae507ea9597cc1a57f8166fa8ae
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_d4477410dde155a3ca27e7ed34b5122b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.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_d4477410dde155a3ca27e7ed34b5122b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.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_d4477410dde155a3ca27e7ed34b5122b.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	16	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
4944	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4944	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4944	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe
4944	JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d4477410dde155a3ca27e7ed34b5122b.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:4944

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
17af1b85eef08f8ce5c711bd7303ac47

SHA1
63e4ae3736987d629de2c757e243fc51ef4cdd49

SHA256
8e16bb83b2bc10ddc395c2495ca3144ea011f9d86db437453ba091bfb7ac2497

SHA512
0fea3eaee7d018e12d4581b5c1ad16c225e5de3b8b42face74dd15c5d5e4639c20ae98b98a0887c615d73412209d36779e87227051a573fb9e66aa841663f2a5

Download Submit
memory/4944-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4944-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4944-81-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/4944-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads