vjw0rm | b959f4a0000dfd9a05f84022d4d08d6876ef7c8629e9a66d75dc4bfb0707b93e

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
10-01-2024 20:26

Target

51870c24bd72f9fd10a0eef0f479e2b6.js
Size

9KB
MD5

51870c24bd72f9fd10a0eef0f479e2b6
SHA1

384138c6f53dabafbabc8431d35d8ce9c536d282
SHA256

b959f4a0000dfd9a05f84022d4d08d6876ef7c8629e9a66d75dc4bfb0707b93e
SHA512

ff8c5623663bd37cfc5dba1063b0309df60ed50f7d931fcd31ca9dd159cb344bbad9a953cf67bce9c910ebd5564d9bf2ff1438d8a564f997e615761d76c79a79
SSDEEP

192:QfEwAGGp9IDNc3JP3nhoxkUykZ3hO65jDAji9JUY:QMZGGXN5P3nhNpCxOiUjinUY

Score

10^/10

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

Blocklisted process makes network request 7 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51870c24bd72f9fd10a0eef0f479e2b6.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\51870c24bd72f9fd10a0eef0f479e2b6.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-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\MX1CAYIRN3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\51870c24bd72f9fd10a0eef0f479e2b6.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
2604	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2604	2436	wscript.exe	29
PID 2436 wrote to memory of 2604	2436	wscript.exe	29
PID 2436 wrote to memory of 2604	2436	wscript.exe	29

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\51870c24bd72f9fd10a0eef0f479e2b6.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\51870c24bd72f9fd10a0eef0f479e2b6.js
  2⤵
  - Creates scheduled task(s)
  PID:2604