vjw0rm | 2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2024 19:18

Target

511f6a9de220c99adf7e2e03a4e48886.js
Size

27KB
MD5

511f6a9de220c99adf7e2e03a4e48886
SHA1

7e3c217e99f7bdd44c2e760feaf413cb3a7736fb
SHA256

2a830c7923253031907c1dd34c4a9532c1f53e8fe7f6a3c8359a0e93ef4b216e
SHA512

8fe6e672872a208e9cac950856c1afa4cdb7fc496cc67531a98322fed1f1b83b1b7b5ce7f5a702b56197c853f0bf09deb5e1958b4369ca01cb42c401fdb4c090
SSDEEP

768:BIa7X/aqtEJfke022Fb+wGcrLQfpds+TbGKRRcpX:qabledke0HFbpGoLQfs+TbGORcpX

Score

10^/10

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

Blocklisted process makes network request 8 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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PhOPzJgSgd.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PhOPzJgSgd.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\511f6a9de220c99adf7e2e03a4e48886.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\0HKX5ALWLG = "\"C:\\Users\\Admin\\AppData\\Roaming\\PhOPzJgSgd.js\""	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\3XFVC1CQKY = "\"C:\\Users\\Admin\\AppData\\Roaming\\511f6a9de220c99adf7e2e03a4e48886.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
3076	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 208 wrote to memory of 3492	208	wscript.exe	88
PID 208 wrote to memory of 3492	208	wscript.exe	88
PID 208 wrote to memory of 3076	208	wscript.exe	90
PID 208 wrote to memory of 3076	208	wscript.exe	90

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\511f6a9de220c99adf7e2e03a4e48886.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:208
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PhOPzJgSgd.js"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  PID:3492
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\511f6a9de220c99adf7e2e03a4e48886.js
  2⤵
  - Creates scheduled task(s)
  PID:3076