vjw0rm | 2c962931cbd7724909e416952b21f412890801380aea4e17e5590fc3f6c6e798

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2024, 20:40

Target

ZXTEJDJGDMND.js
Size

9KB
MD5

4bf6f13902c5c69baf11914cc4c6eb4c
SHA1

5fcb4b1f0092a79c2f050c678a69fbc6ee8e2852
SHA256

d1d87467831ba4b691160509772995bb99ce7d2abcc96bd6b6cdd6ec1af058dc
SHA512

1b3ecdf7dd4a8541c80d0fa51359228bdb10687715697cb1ceaea8e14d36db5f6f53425a3e5f065797faf2ff8ebdc7c9afe5e32a9149de1d81e79b68a10dbaa9
SSDEEP

192:BXBxq3DILsVtE285GYsZm1t0WXHyuYLbBZEXZT9BCZzD5Xes:9Bx8DIiXMG5E1aWXSZX2EJ

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ZXTEJDJGDMND.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ZXTEJDJGDMND.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\POXI8QWF6K = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\ZXTEJDJGDMND.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
688	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 688	4680	wscript.exe	84
PID 4680 wrote to memory of 688	4680	wscript.exe	84

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\ZXTEJDJGDMND.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4680
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\ZXTEJDJGDMND.js
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:688