vobfus | 402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 11:16

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General

Target

JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe
Size

204KB
MD5

6c3c5dd37301cefb88af00b46cb67587
SHA1

87f871215a1a786ce9ce477620fbbdaf8c86d5b7
SHA256

402b7f6127a11b824e618e6bc2adb6005a46081fe9252020cacabdb32c4a6302
SHA512

98cfd9402657bd4184acba374d1a82de3b290bb6cdb55eb1017505f10e38925c4360ba6acc4a2ca4ff0ad83904ed89d56cac844b8bd9621a0080b096dacd1ff0
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_6c3c5dd37301cefb88af00b46cb67587.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.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_6c3c5dd37301cefb88af00b46cb67587.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.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_6c3c5dd37301cefb88af00b46cb67587.exe

Script User-Agent 2 IoCs

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

description	flow	ioc
HTTP User-Agent header	3	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	4	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2908	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2908	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2908	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe
2908	JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6c3c5dd37301cefb88af00b46cb67587.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:2908

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
b4ac415a0c6aafc8f83ac625b600b230

SHA1
e566bbcfd778d0b4d269d2afdc32d92a5d422f3e

SHA256
9c3835e4994f5cdf8b2e00763d36034cdec0e15e2e613716138202521b671201

SHA512
43648f3e3f1049a31c326ed8fbd35804cd12d6b8a7748ae7e543cd68e5ddb258bfe887b5792d450d6eaaece789b498b113fc7fd986b2d4bf41fbbdedb21f199d

Download Submit
memory/2908-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2908-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2908-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads