vjw0rm | 7385592ac66818d908a5591d21fdf11ad4e8006685bd81009823166d2560db9d

Analysis

max time kernel
145s
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
06-02-2024 21:57

Target

9590451d9db0f6b02577b7dbec449850.js
Size

21KB
MD5

9590451d9db0f6b02577b7dbec449850
SHA1

997317bed5f018f9ae87d4594d681eef32e8988c
SHA256

7385592ac66818d908a5591d21fdf11ad4e8006685bd81009823166d2560db9d
SHA512

f299ad64205ce9f70b37f8432f538702eb373e939acc666fac511b229f406470d5a62b4ca2abc4eb9aec8bbc96d4e8181f0d88cc22a7d3742b0a5b4e05b18ea9
SSDEEP

384:CxU9dcMIcIau83px1F6cSdL8HLkWZAypCmC4sOBs//iFA0WpF/Q7BhI2XHy2uF/p:BfcW3EcCllpFI7X7A/p

Score

10^/10

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

Blocklisted process makes network request 16 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-1-5-21-996941297-2279405024-2328152752-1000\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\9590451d9db0f6b02577b7dbec449850.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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\P7EKOWB6GH = "\"C:\\ProgramData\\9590451d9db0f6b02577b7dbec449850.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
4196	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1908 wrote to memory of 4196	1908	wscript.exe	84
PID 1908 wrote to memory of 4196	1908	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\9590451d9db0f6b02577b7dbec449850.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:1908
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\ProgramData\9590451d9db0f6b02577b7dbec449850.js
  2⤵
  - Creates scheduled task(s)
  PID:4196