vjw0rm | 765c3ac3b8df6ceab3741f5e97d0aae95631f31a4cce08d583becd2b9578612b

Analysis

max time kernel
145s
max time network
160s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-05-2024 13:19

Target

new.js
Size

310.0MB
MD5

d257dbc86304eb58f463718dc39be087
SHA1

8807ea53d0a6e14fdbdad7a44ddf612ccf83c22b
SHA256

765c3ac3b8df6ceab3741f5e97d0aae95631f31a4cce08d583becd2b9578612b
SHA512

d186fff74e2a797184cf084723fde7b898c5ffd70d1edafca96fb8968acc951c7595bf5df691a650736fd01de603940238b8b23c25943fb7078ad96999b17623
SSDEEP

192:/NLJu3352Rl7e5tXqyn41MEgrUTpQKUBRJkeMuSSVs1:1ASl7e/Fn4GEgspChMuSoU

Score

10^/10

Family

vjw0rm

http://vjwrmd.duckdns.org:7974

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	2804	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\new.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\new.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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\BG02EXRY6A = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\new.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

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
2532	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 2532	2804	wscript.exe	29
PID 2804 wrote to memory of 2532	2804	wscript.exe	29
PID 2804 wrote to memory of 2532	2804	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\new.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\new.js
  2⤵
  - Creates scheduled task(s)
  PID:2532