vjw0rm | bb22cb56b476332b2148367891089954d3e9f5af18104615920af794601c817d

Analysis

max time kernel
144s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
05-02-2024 18:25

Target

92aeab75b19a2fd42eb1da3f71e58554.js
Size

17KB
MD5

92aeab75b19a2fd42eb1da3f71e58554
SHA1

dad3bfa343407c9269bbe928ef061bf4264bc429
SHA256

bb22cb56b476332b2148367891089954d3e9f5af18104615920af794601c817d
SHA512

b8adf49826b13260b6b7f2328224ec752e54cb808611d56be5a93b6b6a907b850fee9e60257c1b849bedab82949e52f432bfe80f7217f9fa67d9afb132bb2353
SSDEEP

384:shmlC69MnDpvmWaQUQe1LoMvEguiwO5mHj+sRwzPIJHE05Vb:shYit2ZvvC8mHjSc1/b

Score

10^/10

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

Blocklisted process makes network request 16 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 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\92aeab75b19a2fd42eb1da3f71e58554.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\P7EKOWB6GH = "\"C:\\ProgramData\\92aeab75b19a2fd42eb1da3f71e58554.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
4064	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 4064	4268	wscript.exe	19
PID 4268 wrote to memory of 4064	4268	wscript.exe	19

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\92aeab75b19a2fd42eb1da3f71e58554.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:4268
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\ProgramData\92aeab75b19a2fd42eb1da3f71e58554.js
  2⤵
  - Creates scheduled task(s)
  PID:4064