vjw0rm | 0aa2dd1f59a1d55cd5021244c1d7383cadbef5363c22718a4d9e47610af30d95

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
21/03/2024, 03:38

Target

da985273a6ca8dfb6a17ff26956a2e71.js
Size

6KB
MD5

da985273a6ca8dfb6a17ff26956a2e71
SHA1

cda0aff65ed3c91b4788f2f7216831cb1ed563ac
SHA256

0aa2dd1f59a1d55cd5021244c1d7383cadbef5363c22718a4d9e47610af30d95
SHA512

e0220201e4e60f7b3b88d6908f4c00cadf8c2fdc6dedaa895ac95b4dbee3de8525b020366840d01701a4719f13e4b0a9b4fbcc9e899e8b5d2e278b265e1993bf
SSDEEP

192:QiPZL7nJuuuujra4G7Tbs5osDBHSB4KEzXbh:QMZPJuuuu/a3LDEh

Score

10^/10

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

Blocklisted process makes network request 7 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\da985273a6ca8dfb6a17ff26956a2e71.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\da985273a6ca8dfb6a17ff26956a2e71.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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MX1CAYIRN3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\da985273a6ca8dfb6a17ff26956a2e71.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
2996	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 2996	1660	wscript.exe	29
PID 1660 wrote to memory of 2996	1660	wscript.exe	29
PID 1660 wrote to memory of 2996	1660	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\da985273a6ca8dfb6a17ff26956a2e71.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\da985273a6ca8dfb6a17ff26956a2e71.js
  2⤵
  - Creates scheduled task(s)
  PID:2996