vjw0rm | 734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c

Analysis

max time kernel
143s
max time network
151s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
09/06/2023, 20:29

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General

Target

734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c.vbs.js
Size

95.4MB
MD5

908c8875c901cb573703ee5ca873d559
SHA1

375c29372950e7ac683827c811b7bacdfbdc3882
SHA256

734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c
SHA512

df29cb9d8ac1fa6c4a88f166f62e59c2715c87221d19ec84786e219b6a98d9a5cf3ac277d0e2f0c6e8bdf6c355f314240c3911866ca3fda81cab27d0e7166ba8
SSDEEP

192:8ZVh7aiI1rk2H2ZSm35+vhOJzLq8MyOY:mVciI1S4YZPMVY

Score

10^/10

vjw0rm persistence trojan worm

Malware Config

Extracted

Family

vjw0rm

http://js8100.duckdns.org:8100

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	1296	wscript.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c.vbs.js	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000\Software\Microsoft\Windows\CurrentVersion\Run\2VHXHE600O = "\"C:\\Users\\Admin\\AppData\\Roaming\\734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c.vbs.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.

persistence

Scheduled Task

T1053

pid	Process
1920	schtasks.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 1920	1296	wscript.exe	29
PID 1296 wrote to memory of 1920	1296	wscript.exe	29
PID 1296 wrote to memory of 1920	1296	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\734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c.vbs.js
1⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1296
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\AppData\Roaming\734861f4226848bb53bcb7fbf84766128d04a251574ffe039f310050a2b8340c.vbs.js
  2⤵
  - Creates scheduled task(s)
  PID:1920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Windows 7 deprecation

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads