vobfus | 9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3

Analysis

max time kernel
148s
max time network
149s
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, 18:12

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General

Target

JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe
Size

200KB
MD5

cecc831c80b338264785bc4ef0ee95d7
SHA1

3e8fa0b4a0de1343bc3c354545fa4066a6a10614
SHA256

9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3
SHA512

edc11f5b1f71d2ef05caba4cf733cf0046f8126a057ed0f25513383a26c35f3ea537d30a50201099ff383d5a369b7a3e942ef674ebda034f3ca329edec976ed5
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_cecc831c80b338264785bc4ef0ee95d7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.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_cecc831c80b338264785bc4ef0ee95d7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.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_cecc831c80b338264785bc4ef0ee95d7.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	14	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	45	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1520	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1520	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1520	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe
1520	JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cecc831c80b338264785bc4ef0ee95d7.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:1520

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
78a661c8caaa11d935aa11f392f9592f

SHA1
9b5b5669274b02f992b95008900a5b582beb413f

SHA256
1671569369d1918cc1c2c2a208168ea67a4c86f1f90bfe474fb35d81807b44ac

SHA512
d7ed7dd72cd8fdd53224a81f8e31278256e881187c58724d25328c08a747cd16c1fccc4f116ada741382285195a7a0c675601f7083d5346d021513c30852976f

Download Submit
memory/1520-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1520-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1520-67-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1520-281-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads