vjw0rm | a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26-02-2024 21:57

Target

a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4.js
Size

16KB
MD5

836365de25b8b33c14a7971eeca6151b
SHA1

2d781e6634f16e12952318b84185f73637724c9c
SHA256

a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4
SHA512

9b30560d74689238c15c0b7c35fc2cd8d007352445be8fda6c84be1ed602303a9285212a830df5e79131ee19d2ef738be3a942bd58147249be51572e22031f85
SSDEEP

384:wLvHm13dN8b4H28naIpRkIfyqcmNxey3hzi8zzHLRsdqjyNLxFcXtqFZaZ:wi1tNXT7PWchmYxsdqjyNNFc0FZaZ

Score

10^/10

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

Blocklisted process makes network request 15 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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4.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-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\P7EKOWB6GH = "\"C:\\ProgramData\\a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4.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
4256	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4292 wrote to memory of 4256	4292	wscript.exe	86
PID 4292 wrote to memory of 4256	4292	wscript.exe	86

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\a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4.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:4292
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\ProgramData\a51cc3c60ccd7b5ea425e70d4a6d3b66174f6e0b71304e9cc34bd800e54d6bc4.js
  2⤵
  - Creates scheduled task(s)
  PID:4256