vjw0rm | 621e2bdac8e7b01a1f6823496ecffa8aa552136dc11bfdbb88be2b44d59ede57

Analysis

max time kernel
141s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
29-12-2024 04:20

Target

ESDAOPMDGJW.js
Size

55KB
MD5

1a2ea3f42fd43a6d0133f11b1c4f3a01
SHA1

dac15bb13bf9336397405bb6d4b8499823b1bf96
SHA256

670632fdc0765b6ffb85dea661fc69f1e03ac526e19c135e0279d1656c350f93
SHA512

cbdf9180fc765d827a732bfbabd1a733d8577b3da7bd33bfc22cba614d162dd502cc21ba932fbfbf662832dd5065f2af183b8f7a774b34405de93372b6768c9c
SSDEEP

1536:qmKaAanF8vaZtN64aSY5fk+bimL5wBfEGKRd:iaAanIaZtN64aSY572U5sId

Score

10^/10

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Vjw0rm family
vjw0rm

Blocklisted process makes network request 6 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ESDAOPMDGJW.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ESDAOPMDGJW.js	wscript.exe

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\POXI8QWF6K = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ESDAOPMDGJW.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
2756	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2756	3016	wscript.exe	31
PID 3016 wrote to memory of 2756	3016	wscript.exe	31
PID 3016 wrote to memory of 2756	3016	wscript.exe	31

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\ESDAOPMDGJW.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\ESDAOPMDGJW.js
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2756