vjw0rm | a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df

Analysis

max time kernel
147s
max time network
154s
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 22:06

Target

a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df.js
Size

9KB
MD5

56949c45eb88b2185504e875a3988dce
SHA1

354e71c9a2da8d31899baeea3dd264a74ae8ecf7
SHA256

a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df
SHA512

37df4d73d9ebeb300dfbe6427ea763e1597236c4b9f4081718b8553366a52a8e8066de3bcbdc8924984510c3755cc9df855000a80051e1648cbae28f7b0e50c0
SSDEEP

192:pimMcYCxTcm/aowLVVjsL0j8BpBlENSriu036wr8IJCJuD:4vLCamhwLVB8G8/EJ/98Zg

Score

10^/10

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

Blocklisted process makes network request 6 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-1-5-21-513485977-2495024337-1260977654-1000\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\a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df.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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\IKTNUESVGM = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df.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
436	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 720 wrote to memory of 436	720	wscript.exe	84
PID 720 wrote to memory of 436	720	wscript.exe	84

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\a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df.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:720
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\a707c0a69369c8e2d991f4e4b77ca59342deb8bfa37dd5c7138e823f20e983df.js
  2⤵
  - Creates scheduled task(s)
  PID:436