vjw0rm | 7385592ac66818d908a5591d21fdf11ad4e8006685bd81009823166d2560db9d

Analysis

max time kernel
150s
max time network
152s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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 18 IoCs

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-1-5-21-1268429524-3929314613-1992311491-1000\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
2776	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 2776	1144	wscript.exe	30
PID 1144 wrote to memory of 2776	1144	wscript.exe	30
PID 1144 wrote to memory of 2776	1144	wscript.exe	30

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
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1144
- 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:2776