vjw0rm | b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c

Analysis

max time kernel
147s
max time network
160s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27/03/2024, 12:51

Target

b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js
Size

23KB
MD5

9adebc3e15bf17b0095fd958e634b659
SHA1

75587f0e6094b057fd4c3ec85b5283d84b3cf95a
SHA256

b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c
SHA512

5b6695670b1e121e82d1b0ecc38903e8ffae2ce23c696aae37d9d261ec8977bc1f22c9fa9da400a7e379984eab01ec85bfd29014b85766c587d206a327ec40bc
SSDEEP

384:dJ4yLFLjlyW/XExNnu6kYgeb63t8jjXVqfa8wWZdPuJrrHtldszaxfc/fMAKk:/NLjlJCuvY363t8PsS8ju1dszaRiMAKk

Score

10^/10

Family

vjw0rm

http://severdops.ddns.net:5050

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
5	2924	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (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-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\5TJJF2Z3XN = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (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
2884	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2924 wrote to memory of 2884	2924	wscript.exe	28
PID 2924 wrote to memory of 2884	2924	wscript.exe	28
PID 2924 wrote to memory of 2884	2924	wscript.exe	28

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\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2924
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\b4600e88132bd5d2308d8fc618117448e8d8553abcd86a31e039dcaef6c8a78c (1).js
  2⤵
  - Creates scheduled task(s)
  PID:2884