vjw0rm | ecb06a64c672927554eeb66d6b0552a147e35eb85a30dadf28d4a2f92d8cb45d

Analysis

max time kernel
147s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
20-03-2024 20:59

Target

d9cf0592d6515534cb8efa5b63cfae5b.js
Size

12KB
MD5

d9cf0592d6515534cb8efa5b63cfae5b
SHA1

93764956ad2a38d3f70dde3ac0410b367bb8a92b
SHA256

ecb06a64c672927554eeb66d6b0552a147e35eb85a30dadf28d4a2f92d8cb45d
SHA512

e739a973e401bd3f96721a18fa1dbb5827e63365c4dacc46c7017adc0f6c93cc82b1c0d9fa71726b8e77b6fe1bdad4863d7ba2b4b71741fd001ce912557673f3
SSDEEP

384:ejR9K9E0ugyt6yOPjHe0hcSI0A4KbL5j0YVX6gKUhs1:ejR9K9E0lS6tr7ySIxD0sXzdhs1

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\d9cf0592d6515534cb8efa5b63cfae5b.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\d9cf0592d6515534cb8efa5b63cfae5b.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-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\VXBM5F7PI1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\d9cf0592d6515534cb8efa5b63cfae5b.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
1316	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 1316	2220	wscript.exe	29
PID 2220 wrote to memory of 1316	2220	wscript.exe	29
PID 2220 wrote to memory of 1316	2220	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\d9cf0592d6515534cb8efa5b63cfae5b.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\d9cf0592d6515534cb8efa5b63cfae5b.js
  2⤵
  - Creates scheduled task(s)
  PID:1316