vjw0rm | 64a7d06b9738cead068c2fb63c961fd22ebb4c78d36a7416f6f8c47cca10163b

Analysis

max time kernel
140s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04-02-2024 11:43

Target

8f11e325ac4400823e67e258fc1a4ed9.js
Size

12KB
MD5

8f11e325ac4400823e67e258fc1a4ed9
SHA1

f37a67d9bc24dcdb3b77b6b488330d04b656929a
SHA256

64a7d06b9738cead068c2fb63c961fd22ebb4c78d36a7416f6f8c47cca10163b
SHA512

c51afd4082cc2e70520be6e1a480fb5bd5be9886848aae7347eaae121bb2bc65e56b4f37cb388b8fc063d9398ff55701684f7436faaeaae5d4aee6833411474a
SSDEEP

192:ey7guLpP0B6FSmV5k0p3QuGGhRuW2ZoWHzheY1bb7Iq7Lz4j/PKdENr1wr4VJmUj:e+g/B6FV5FQtGhcW8R99h3L4jHq2r1f7

Score

10^/10

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

Blocklisted process makes network request 6 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-1-5-21-3803511929-1339359695-2191195476-1000\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\8f11e325ac4400823e67e258fc1a4ed9.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8f11e325ac4400823e67e258fc1a4ed9.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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\O3FNWNFPWY = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\8f11e325ac4400823e67e258fc1a4ed9.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
1488	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1372 wrote to memory of 1488	1372	wscript.exe	88
PID 1372 wrote to memory of 1488	1372	wscript.exe	88

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\8f11e325ac4400823e67e258fc1a4ed9.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:1372
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\8f11e325ac4400823e67e258fc1a4ed9.js
  2⤵
  - Creates scheduled task(s)
  PID:1488