vjw0rm | d7613ec37e645975b8269da83418168d8721b00a8b90bf7c15db6095ef25e1dd

Analysis

max time kernel
141s
max time network
144s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 15:56

Target

HOO8M_Invoice_Copy.js
Size

11KB
MD5

4bbeabc7d902f9f654cfe9c4f51d155d
SHA1

04b90a68e3911bc4edcf355c1db4567ae173c601
SHA256

e3f46470aa9ef52628f741e07db33a6af854693ae2a761d397bf87fbfbe687c9
SHA512

ecebe6eeb0848600cc8d4ac6b612ad4f02e5bce7d3f35ed14936508aa987c449a8e8029752bfa0b46ed68661836b99692abedce4175d3a7085aa22e0cb9882e5
SSDEEP

192:GDiOn6F9bg4NuHmcVP0sntG4a3FRUciE8IswHT9xfD8+pLhZx53fAeT7yTK:GDii6FVg4NEnbt7a3F2/EzswH/JIeXyO

Score

10^/10

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

Blocklisted process makes network request 6 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HOO8M_Invoice_Copy.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\HOO8M_Invoice_Copy.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\6ID7YY2BDP = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\HOO8M_Invoice_Copy.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
2812	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2828 wrote to memory of 2812	2828	wscript.exe	31
PID 2828 wrote to memory of 2812	2828	wscript.exe	31
PID 2828 wrote to memory of 2812	2828	wscript.exe	31

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\HOO8M_Invoice_Copy.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2828
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\HOO8M_Invoice_Copy.js
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2812