vjw0rm | 3852e3e3d446bb7feb8ca29573f2967360624e5a1bb0910dbb3a3e5dd686a948

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
21-11-2023 02:00

Target

1.js
Size

23KB
MD5

0fec59fc91143d58dfe0f0f14d4e5f08
SHA1

76de24642195a5b6a14281fdbc457bc614916eba
SHA256

94d7bd6201394056c5732fdf0064a2217edd83816f5805ff91b5db0b8f52f7a3
SHA512

2278800a84137d9027ca95225ed7fd6cd06b34c7939464583cfd64e22db0217958b87d0584020fa38d0db3fbb33434b978b56e63651df716ac99580eac0f52be
SSDEEP

384:Fuv8G5Esgus0/0tW2KPM3Ce5/F7C4sEgGz38dOQIOlkDxDM/5xAUZvqIRyi:gvVUusQrcCe5/F7C4sEzzMMQDlkdQ/7j

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\1.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-1-5-21-2085049433-1067986815-1244098655-1000\Software\Microsoft\Windows\CurrentVersion\Run\2RJZ4PQJPY = "\"C:\\Users\\Admin\\AppData\\Roaming\\1.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
2716	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2876 wrote to memory of 2716	2876	wscript.exe	29
PID 2876 wrote to memory of 2716	2876	wscript.exe	29
PID 2876 wrote to memory of 2716	2876	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\1.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\1.js
  2⤵
  - Creates scheduled task(s)
  PID:2716