vjw0rm | 66037239aa96e722f20864b8a140576e3c592cafe2d9a6067b3ff349ea851792

Analysis

max time kernel
146s
max time network
146s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
30-12-2024 04:28

Target

#WPNMD903WEBNSM.js
Size

13KB
MD5

76afb4e74dd9305a478e9a436086c393
SHA1

fd233c3e245894c8ea473a394b4363a0616f423b
SHA256

cbf943d583ce8bf8229df4072ed28f1598c1212b45f3bc3a2132e17a72957f02
SHA512

6189972dc375bbccb80e2770492b8ca04320430bd2087a5716d40725d991a9d6a4095a6f9fee5edd9aaf6490195aa9cb66fcb411b54b2fe40bb5ea9274e5b0b7
SSDEEP

384:v4Np85FCpanpunSDi5WMsdoujUpoo5SU2Vc65Xvvt6h:QNW/2s8j5W/5sooE3VH5Xvvt6h

Score

10^/10

Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm
Vjw0rm family
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\#WPNMD903WEBNSM.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\#WPNMD903WEBNSM.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\6APWATPSUN = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\#WPNMD903WEBNSM.js\""	wscript.exe

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

Scheduled Task

pid	Process
2592	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2592	2512	wscript.exe	31
PID 2512 wrote to memory of 2592	2512	wscript.exe	31
PID 2512 wrote to memory of 2592	2512	wscript.exe	31

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\#WPNMD903WEBNSM.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\#WPNMD903WEBNSM.js
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2592