vjw0rm | 9c93430d461f06f4193e4130261545c936dbf23a41654005672b099772e10efb

Analysis

max time kernel
146s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10-04-2024 22:07

Target

ec187870c12d12639f5c90d00e7c5b8e_JaffaCakes118.js
Size

11KB
MD5

ec187870c12d12639f5c90d00e7c5b8e
SHA1

949e87f2d785e32e944f1a992eb1814256393f98
SHA256

9c93430d461f06f4193e4130261545c936dbf23a41654005672b099772e10efb
SHA512

e133f423bf6320e884629d3ecbbd866e097b882ae474933e1cd47264a389d3bdced7c1d8687716671bdc323712da956938d6db71f774a90d083530266698939a
SSDEEP

192:eA4X6rkfDrGK93aZAsZkAewnpjKX2KLpYlLDVbKv+gR3uTRw2qwWT5m7u5QZ7H:ef68DrGA3HRAj9QGgR++1kcI

Score

10^/10

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

Blocklisted process makes network request 28 IoCs

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ec187870c12d12639f5c90d00e7c5b8e_JaffaCakes118.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ec187870c12d12639f5c90d00e7c5b8e_JaffaCakes118.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\\ec187870c12d12639f5c90d00e7c5b8e_JaffaCakes118.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
2528	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 112 wrote to memory of 2528	112	wscript.exe	29
PID 112 wrote to memory of 2528	112	wscript.exe	29
PID 112 wrote to memory of 2528	112	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\ec187870c12d12639f5c90d00e7c5b8e_JaffaCakes118.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:112
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Local\Temp\ec187870c12d12639f5c90d00e7c5b8e_JaffaCakes118.js
  2⤵
  - Creates scheduled task(s)
  PID:2528