vjw0rm | bb22cb56b476332b2148367891089954d3e9f5af18104615920af794601c817d

Analysis

max time kernel
147s
max time network
146s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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 18 IoCs

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-1-5-21-3818056530-936619650-3554021955-1000\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
2896	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2896	2536	wscript.exe	29
PID 2536 wrote to memory of 2896	2536	wscript.exe	29
PID 2536 wrote to memory of 2896	2536	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\92aeab75b19a2fd42eb1da3f71e58554.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2536
- 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:2896