vjw0rm | b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c

Analysis

max time kernel
143s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/03/2024, 12:51

Target

b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js
Size

23KB
MD5

9adebc3e15bf17b0095fd958e634b659
SHA1

75587f0e6094b057fd4c3ec85b5283d84b3cf95a
SHA256

b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c
SHA512

5b6695670b1e121e82d1b0ecc38903e8ffae2ce23c696aae37d9d261ec8977bc1f22c9fa9da400a7e379984eab01ec85bfd29014b85766c587d206a327ec40bc
SSDEEP

384:dJ4yLFLjlyW/XExNnu6kYgeb63t8jjXVqfa8wWZdPuJrrHtldszaxfc/fMAKk:/NLjlJCuvY363t8PsS8ju1dszaRiMAKk

Score

10^/10

Family

vjw0rm

http://severdops.ddns.net:5050

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
17	1720	wscript.exe

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-1-5-21-609813121-2907144057-1731107329-1000\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\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).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-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5TJJF2Z3XN = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).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
4796	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 4796	1720	wscript.exe	90
PID 1720 wrote to memory of 4796	1720	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\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).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:1720
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js
  2⤵
  - Creates scheduled task(s)
  PID:4796