vjw0rm | 2c962931cbd7724909e416952b21f412890801380aea4e17e5590fc3f6c6e798

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
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

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-1-5-21-3533259084-2542256011-65585152-1000\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
2676	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2676	1668	wscript.exe	32
PID 1668 wrote to memory of 2676	1668	wscript.exe	32
PID 1668 wrote to memory of 2676	1668	wscript.exe	32

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
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1668
- 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:2676