vjw0rm | e99599c5b1407b96f88bfcca51264c13d7ff5e7d00c2c3868636b575bb06fcae

Analysis

max time kernel
153s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230703-en
resource tags

arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
submitted
04/08/2023, 21:27

Target
Scanned.js
Size 3KB
Sample230804-1arsfaee26
SHA256 e99599c5b1407b96f88bfcca51264c13d7ff5e7d00c2c3868636b575bb06fcae
MD5 d65a553af676282e15cb3ab7cf998998
SHA1 dd76b76df265973b7aea2f3ffaba45123024f05c
SHA512 d7ca6988dfda70a9e390ebe2a65c2a01bd0fe2407df8be83276a1f31781b1bc143daad40ff90310d0fe78c3beffc3b817b8c32637de732c049689d12b62ab4a7
MD5 SHA1 SHA512

Score

10^/10

Family

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	3088	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Scanned.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-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\5RQEBVICNC = "\"C:\\Users\\Admin\\AppData\\Roaming\\Scanned.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
4908	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3088 wrote to memory of 4908	3088	wscript.exe	81
PID 3088 wrote to memory of 4908	3088	wscript.exe	81

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Scanned.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3088
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Scanned.js
  2⤵
  - Creates scheduled task(s)
  PID:4908