vjw0rm | a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/02/2024, 22:02

Target

a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd.js
Size

12KB
MD5

d3f3203a0eae82b2e715f253de902238
SHA1

04222a59b1033486041ee1b1866b1b84371d69c8
SHA256

a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd
SHA512

ca14c9b9232d0fcefa84ed2b7b4ef6b7eb7e625f2548f1be1304346a1a7f44c0e747b78378bbc5882913322321d783e4ffcbe25b3ed6c11533e69b4a93b6bda8
SSDEEP

384:eiwHFGNuMsRTKPOON3RWMAdEuRQGlJ+R63T:eVsX4uxb8qGlJ+gj

Score

10^/10

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

Blocklisted process makes network request 6 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd.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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\VXBM5F7PI1 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd.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
2776	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1412 wrote to memory of 2776	1412	wscript.exe	29
PID 1412 wrote to memory of 2776	1412	wscript.exe	29
PID 1412 wrote to memory of 2776	1412	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\a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1412
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\a6074fe81acba4af7ff9a864fc65da056ae657f051330ebd1633d81b702c40cd.js
  2⤵
  - Creates scheduled task(s)
  PID:2776