vjw0rm | 1cec95c97922a926105fe176ac71885f52b6ddfae8e0901f1c1c9e901f083363

Resubmissions

21-07-2023 10:49

21-07-2023 10:47

max time kernel
194s
max time network
197s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
21-07-2023 10:49

Target

Specifikace objednvky.js
Size

24KB
MD5

4272d76e2efed7d323e14bccef987913
SHA1

a8cde379b41cfafb036896484844620a7fcc11c6
SHA256

39372ec10b2720511f8ca94e8aed43273c507637ec03f9a1eac279aadeb22c55
SHA512

717ca100e5f2463b8aa675185e2dbd743a015fffe7654dab2b227691ed66e9443a3e387d31c3eeed63a22d1b3f77b213feec3c3fe6c1438ddf5313066f2583a9
SSDEEP

384:0B+UO8kwlbBtHS0ihYvG3bMZcCOQHp4aIX6xEzWZNxFlumanjjjIYNFLD5zvOJ:09ewl7tGr+Oy4aPOL13IoFLdzGJ

Score

10^/10

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

Blocklisted process makes network request 24 IoCs

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Specifikace objednvky.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000\Software\Microsoft\Windows\CurrentVersion\Run\1CYH0WDT4T = "\"C:\\Users\\Admin\\AppData\\Roaming\\Specifikace objedn?vky.js\""	wscript.exe
Key created	\REGISTRY\USER\S-1-5-21-1024678951-1535676557-2778719785-1000\Software\Microsoft\Windows\CurrentVersion\Run	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
2968	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2968	1712	wscript.exe	29
PID 1712 wrote to memory of 2968	1712	wscript.exe	29
PID 1712 wrote to memory of 2968	1712	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\Specifikace objednvky.js"
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\Specifikace objednvky.js
  2⤵
  - Creates scheduled task(s)
  PID:2968