vobfus | 08994fa356f6a16e8558f7dc35e66367c5162d314465d18a499d98297551647e

Analysis

max time kernel
149s
max time network
145s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 07:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
Size

826KB
MD5

f57b3ba8ad17d01ac7e0e51a6903c82a
SHA1

6c9d325c96b6abd55bf95c9308a8b72eca8c992d
SHA256

08994fa356f6a16e8558f7dc35e66367c5162d314465d18a499d98297551647e
SHA512

48e8cf3f46284d80b5fae618e5c76e66fa996dc65f3cdb2103a4168a225d8d943ac8dbffe463d4e56dcbaf06e05d7b83686d2593b9faa23c05f2a663dd13c8ec
SSDEEP

6144:Xo/BHng5HaVG4G/1z+QVMbg1do/BHng5HaVG4G/1z+QVMbg1do/BHng5HaVG4G/5:4ZgaYiZgaYiZgaYzZgaV

Score

10^/10

vobfus discovery persistence worm

Malware Config

Signatures

Vobfus
A widespread worm which spreads via network drives and removable media.
worm 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	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.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"	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.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	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.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
1992	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1992	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1992	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
1992	f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f57b3ba8ad17d01ac7e0e51a6903c82a_JaffaCakes118.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:1992

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\AG58FPQON.exe

Filesize
826KB

MD5
9bbec70d9bf21d4ec2dd1bcf16e3eb82

SHA1
b50f1cb28f2298a6a67822723bfd7e80a0fa7579

SHA256
7e8ff0f8e659839c7fb23edfa098aa0806e9e412a4616294a0a98498d2b2efbc

SHA512
f1cbb61dbb1f966a46f5b136705236688edfafe8d6e02163fb47aefaeeb6c842881e30db19c41ba468728351352550ced0bfd72ccdf6995e7a0e0f73d48ce5f7

Download Submit
memory/1992-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1992-10-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1992-74-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download
memory/1992-217-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads