vjw0rm | 510b335ce718d50da78a27b1750e2af1b18994b10e550c78c61a4491976eb974

Analysis

max time kernel
198s
max time network
250s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 09:40

Target

14bf111a8393a7293bcedcb4836c9be0.js
Size

9KB
MD5

14bf111a8393a7293bcedcb4836c9be0
SHA1

ba000e395f99d5be511c4212dc80a4609d342a4b
SHA256

510b335ce718d50da78a27b1750e2af1b18994b10e550c78c61a4491976eb974
SHA512

60180d69e6db7711fa934a4e81aa69445c14a171220567f1a028673a45ee450eea3f1639a83dbc3ce00f87cdb06e713a460631f3eda308f74c85cdf8e5f23cac
SSDEEP

192:QJcM9Z0N7lk8ksoAsNJIS7WBUeaZTOVwBBnCCzxtNLFH5EOKxOOQ:QZ9Z8768ksoAs/IQneaZCVspdzxrFHBb

Score

10^/10

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

Blocklisted process makes network request 5 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\14bf111a8393a7293bcedcb4836c9be0.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\14bf111a8393a7293bcedcb4836c9be0.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-1-5-21-3308111660-3636268597-2291490419-1000\Software\Microsoft\Windows\CurrentVersion\Run\MX1CAYIRN3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\14bf111a8393a7293bcedcb4836c9be0.js\""	wscript.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

Scheduled Task/Job

pid	Process
2852	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 2852	2844	wscript.exe	29
PID 2844 wrote to memory of 2852	2844	wscript.exe	29
PID 2844 wrote to memory of 2852	2844	wscript.exe	29

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\14bf111a8393a7293bcedcb4836c9be0.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2844
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\14bf111a8393a7293bcedcb4836c9be0.js
  2⤵
  - Creates scheduled task(s)
  PID:2852