vobfus | df6a8da1621cbcf76de30d5f3b5becc14136c5982c06fcda8363a2cc6272a01f

Analysis

max time kernel
149s
max time network
142s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07/01/2025, 13:35

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General

Target

JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe
Size

204KB
MD5

65de4d64441311873f1236c13ad06d26
SHA1

b9fdc87a0b5dba2f2bc0a63b080b81f2c09b699a
SHA256

df6a8da1621cbcf76de30d5f3b5becc14136c5982c06fcda8363a2cc6272a01f
SHA512

1c8ff89ca8830e98ffa8b501e8d513f8cac36e8830941b18df6e746deacd0f985fb8bbd56092e4bd5587ed72b65968724f9e95a37017bcbdac1d82f0a91d13f7
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1T:Xo/BHng5HaVG4G/1z+QVMbg1T

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_65de4d64441311873f1236c13ad06d26.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe
Key created	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_65de4d64441311873f1236c13ad06d26.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_65de4d64441311873f1236c13ad06d26.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	JaffaCakes118_65de4d64441311873f1236c13ad06d26.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_65de4d64441311873f1236c13ad06d26.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
268	JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
268	JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
268	JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe
268	JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65de4d64441311873f1236c13ad06d26.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_65de4d64441311873f1236c13ad06d26.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:268

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
1db49fc429c987b337cb2e8ef9b8204b

SHA1
4da050934a2b43ed5b39b7c41fae76d0b1f789d1

SHA256
714e96a34a242aed1795199ccb1cf3ffeee233a477b0d9a6c8623dffddb1fae8

SHA512
70603d4ed663c4045b2813b4a7e9839d3429e803d13f872dc68ca2fd543d040558179843c59a33567edeec63705ca64c44b159adf9ca6eb046a8fec9f0a1525d

Download Submit
memory/268-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/268-17-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/268-224-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads