vjw0rm | 6faec8bf17abcfc03ce14e3b125d545f2f5d72548a59e814d7e279281210e770

Analysis

max time kernel
195s
max time network
211s
platform
windows10-2004_x64
resource
win10v2004-20231023-en
resource tags

arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
submitted
05-11-2023 07:48

Target

NEAS.cb9180e29f04c5cb798032bfc44d4810.js
Size

236KB
MD5

cb9180e29f04c5cb798032bfc44d4810
SHA1

694bf337ac85528ca316d6becee3144e68df2aa3
SHA256

6faec8bf17abcfc03ce14e3b125d545f2f5d72548a59e814d7e279281210e770
SHA512

59b7f3363bc32df6e1283c3022897f439d4972baf5ba63027a17f981609d34743a6e26a2e0753900f1f79e9a1215e9b95c79660748bb14949aef955821631141
SSDEEP

3072:7Wu1AT2XJAvZBEkHiMg3mMlbYH+2JDLCGPERQ3:7Wu1AT2XJAvZB3HxpMlbYH+sLCGPqQ3

Score

10^/10

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

Blocklisted process makes network request 11 IoCs

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1114462139-3090196418-29517368-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NEAS.cb9180e29f04c5cb798032bfc44d4810.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\NEAS.cb9180e29f04c5cb798032bfc44d4810.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-1-5-21-1114462139-3090196418-29517368-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YZ3A7IG0VR = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\NEAS.cb9180e29f04c5cb798032bfc44d4810.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
388	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 388	2972	wscript.exe	90
PID 2972 wrote to memory of 388	2972	wscript.exe	90

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\NEAS.cb9180e29f04c5cb798032bfc44d4810.js
1⤵
- Blocklisted process makes network request
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\NEAS.cb9180e29f04c5cb798032bfc44d4810.js
  2⤵
  - Creates scheduled task(s)
  PID:388