vjw0rm | 3f3019756abd91f3321ce5a667903bb7e8dfb92431b4cbee6252e53a3975ed50

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12/01/2024, 17:55

Target
Bonkypay.js
Size 39KB
Sample240112-why49schaj
SHA256 3aa78c393df682a0c837cd7727ede3adfa3082e27cb636f27feb43845db32ded
MD5 56ca23b7f83cc1d74eb783ff1848b5a5
SHA1 fd67a259ecd29886d77c0afb90a66bd8ec22b567
SHA512 1ae103708708215e35899cc4d93cce9f13476e71344217caeb7021be062dc0bd09520a9e6089643535a72bbefb816d41c4ebc3265ba72a4de6a273ed958f2296
SSDEEP 768:BAPRfvT+ydvBoRjbSYcSqaqAg0ruV3i8Zg/SizIY6gFLxKrywg1SYcSqUHa/pAM8:Bw4zj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	wscript.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Bonkypay.js	wscript.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Bonkypay.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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\4HKYRGTYPW = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Bonkypay.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
2472	schtasks.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2472	2672	wscript.exe	89
PID 2672 wrote to memory of 2472	2672	wscript.exe	89

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\Bonkypay.js
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\Bonkypay.js
  2⤵
  - Creates scheduled task(s)
  PID:2472