vobfus | 9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3

Analysis

max time kernel
149s
max time network
144s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 08:38

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General

Target

cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
Size

200KB
MD5

cecc831c80b338264785bc4ef0ee95d7
SHA1

3e8fa0b4a0de1343bc3c354545fa4066a6a10614
SHA256

9dfddc53804b8d14662802a06eb9fc90497d807022544962805efa4367a1ebb3
SHA512

edc11f5b1f71d2ef05caba4cf733cf0046f8126a057ed0f25513383a26c35f3ea537d30a50201099ff383d5a369b7a3e942ef674ebda034f3ca329edec976ed5
SSDEEP

3072:3Hjk+0oLnWFnzBHv/xWFsg8WatFBGFVWPE5ac0pG/1z+QVMbg1:Xo/BHng5HaVG4G/1z+QVMbg1

Score

10^/10

vobfus 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	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	cecc831c80b338264785bc4ef0ee95d7_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"	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\VLXHCMT5KJ = "C:\\Users\\Admin\\AppData\\Roaming\\AG58FPQON.exe"	cecc831c80b338264785bc4ef0ee95d7_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
1364	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1364	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1364	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
1364	cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cecc831c80b338264785bc4ef0ee95d7_JaffaCakes118.exe"
1⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
PID:1364

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
200KB

MD5
65202c2172417a8455b5c50ec4f8ca04

SHA1
50b86b0d7a06bbcd9aee4b8d6f13e896f1806650

SHA256
d7330b49fcd2b19901d4c0dc3b623264001201fa090f45197f65e8db9374940a

SHA512
8f421bee781ca69aa96ee0f0dbd45eea4f0b1a85f2e355f2335dfd3609e9fec5e787374834171e2a909a03a5728220536207cc6716d8e373567e7e1ad05775e6

Download Submit
memory/1364-0-0x0000000000400000-0x0000000000434000-memory.dmp

Filesize
208KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads