vobfus | 7de5222d9963c3857415332a94e40297f56973e108e3ca63ecd66e508c5fa634

Analysis

max time kernel
150s
max time network
145s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
08/01/2025, 07:12

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General

Target

JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Size

204KB
MD5

925b193be8aef8b7e6bc0336e1398573
SHA1

3e630a05cbf83ef4e9015c103897f191babd6b9a
SHA256

7de5222d9963c3857415332a94e40297f56973e108e3ca63ecd66e508c5fa634
SHA512

4e58d2e656d9ef73cbc7b0c1b0c887bd0d9750d51b45bcfd4fbdb6fbf2f39538d1951d1bbc515f9e2e7710d3935cd327083c015038fca976b0fac209e94ef315
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_925b193be8aef8b7e6bc0336e1398573.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
Key created	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.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_925b193be8aef8b7e6bc0336e1398573.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_925b193be8aef8b7e6bc0336e1398573.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_925b193be8aef8b7e6bc0336e1398573.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_925b193be8aef8b7e6bc0336e1398573.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
1612	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1612	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1612	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
1612	JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_925b193be8aef8b7e6bc0336e1398573.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:1612

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
2aa64c0a6a34c570f0542cfedb49d2d9

SHA1
7ae1b8586547a4ec32f2f10de52fb9797041435f

SHA256
fb0f5da880f139df7041b927c1a1503493de99ae8d50c822bcd375c314b2075b

SHA512
869a07802bc42e8174d25b4f579c7f8bf0183e92b4c0bcf76998cafcd48eb6ace1a7f7e2816648049fd5540a609c9eaae3d88f5b59c54da6f2718b76a798a2a3

Download Submit
memory/1612-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1612-24-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1612-231-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads