vobfus | 9bdeb6e89d24c17de80309aa7287b09a81e57b48282fb1f9c8a1c3795cd281aa

Analysis

max time kernel
149s
max time network
136s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
09/01/2025, 15:53

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General

Target

JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
Size

204KB
MD5

cc392c94ddba2c4417bb12637b3cd18c
SHA1

0b8d888f7ac0fb4a5e6c13fcfda0519a29213022
SHA256

9bdeb6e89d24c17de80309aa7287b09a81e57b48282fb1f9c8a1c3795cd281aa
SHA512

b787a05e74ec6b1cef12a2bc86f2c0cd02d30626adcfb379d25aa1538093491d6f9780300002b32a38f5eb0f0a58a3b291468998f577f01e59781bf395446448
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_cc392c94ddba2c4417bb12637b3cd18c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.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_cc392c94ddba2c4417bb12637b3cd18c.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_cc392c94ddba2c4417bb12637b3cd18c.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_cc392c94ddba2c4417bb12637b3cd18c.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_cc392c94ddba2c4417bb12637b3cd18c.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
2248	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2248	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2248	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
2248	JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cc392c94ddba2c4417bb12637b3cd18c.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:2248

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
9ff55b787a0d35169c74b6929fab7d5b

SHA1
db2e726dedd43501f557546c1fcaacd19a2bbd89

SHA256
d717d40d2f54746b41b31e307050f18ac39f4c3861662c0e5c99124163798f80

SHA512
1dafdf334b24ef897e4ba7c33c82e1f342cec92e175e38e0a7b4ec9addafc84087af2c235131193eb65a7326e65b25c632e3aaae4bec88a4a54d987621b0be2b

Download Submit
memory/2248-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2248-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2248-81-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/2248-288-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads