vjw0rm | e9e94e7914e4609deb623bfc77f1219e56e32f563f5b4ad92e8147acad8dc3c5

Analysis

max time kernel
134s
max time network
143s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
14-06-2024 15:53

Target

Luckygames.js
Size

39KB
MD5

56ca23b7f83cc1d74eb783ff1848b5a5
SHA1

fd67a259ecd29886d77c0afb90a66bd8ec22b567
SHA256

3aa78c393df682a0c837cd7727ede3adfa3082e27cb636f27feb43845db32ded
SHA512

1ae103708708215e35899cc4d93cce9f13476e71344217caeb7021be062dc0bd09520a9e6089643535a72bbefb816d41c4ebc3265ba72a4de6a273ed958f2296
SSDEEP

768:BAPRfvT+ydvBoRjbSYcSqaqAg0ruV3i8Zg/SizIY6gFLxKrywg1SYcSqUHa/pAM8:Bw4zj

Score

10^/10

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Luckygames.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Luckygames.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-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\4HKYRGTYPW = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Luckygames.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

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
1708	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 1708	2228	wscript.exe	29
PID 2228 wrote to memory of 1708	2228	wscript.exe	29
PID 2228 wrote to memory of 1708	2228	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\Luckygames.js
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\Luckygames.js
  2⤵
  - Creates scheduled task(s)
  PID:1708