Malware Analysis Report

2024-11-13 15:40

Sample ID 230323-pnsq4sff23
Target H656_Payment_receipt_Pdf.js
SHA256 383161ff3e03ff39f396725cef6bae622040bcd5aff25df8b147c1fd9639daef
Tags
vjw0rm persistence trojan worm
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

383161ff3e03ff39f396725cef6bae622040bcd5aff25df8b147c1fd9639daef

Threat Level: Known bad

The file H656_Payment_receipt_Pdf.js was found to be: Known bad.

Malicious Activity Summary

vjw0rm persistence trojan worm

Vjw0rm

Blocklisted process makes network request

Checks computer location settings

Drops startup file

Adds Run key to start application

Enumerates physical storage devices

Uses Task Scheduler COM API

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-03-23 12:29

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-23 12:28

Reported

2023-03-23 13:05

Platform

win7-20230220-en

Max time kernel

129s

Max time network

164s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\H656_Payment_receipt_Pdf.js

Signatures

Vjw0rm

trojan worm vjw0rm

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\wscript.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\H656_Payment_receipt_Pdf.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\H656_Payment_receipt_Pdf.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Windows\CurrentVersion\Run\FTQMIP0ARG = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\H656_Payment_receipt_Pdf.js'" C:\Windows\system32\wscript.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1248 wrote to memory of 740 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1248 wrote to memory of 740 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1248 wrote to memory of 740 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\H656_Payment_receipt_Pdf.js

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\H656_Payment_receipt_Pdf.js

Network

Country Destination Domain Proto
US 8.8.8.8:53 js9300.duckdns.org udp
NL 37.0.14.196:9300 js9300.duckdns.org tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-23 12:28

Reported

2023-03-23 13:05

Platform

win10v2004-20230220-en

Max time kernel

148s

Max time network

154s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\H656_Payment_receipt_Pdf.js

Signatures

Vjw0rm

trojan worm vjw0rm

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\wscript.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\H656_Payment_receipt_Pdf.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\H656_Payment_receipt_Pdf.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FTQMIP0ARG = "'C:\\Users\\Admin\\AppData\\Local\\Temp\\H656_Payment_receipt_Pdf.js'" C:\Windows\system32\wscript.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\System32\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2076 wrote to memory of 4536 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 2076 wrote to memory of 4536 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\H656_Payment_receipt_Pdf.js

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr 'C:\Users\Admin\AppData\Local\Temp\H656_Payment_receipt_Pdf.js

Network

Country Destination Domain Proto
US 8.8.8.8:53 135.106.31.20.in-addr.arpa udp
US 8.8.8.8:53 js9300.duckdns.org udp
NL 37.0.14.196:9300 js9300.duckdns.org tcp
US 8.8.8.8:53 196.14.0.37.in-addr.arpa udp
US 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 134.17.126.40.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 151.122.125.40.in-addr.arpa udp
US 20.189.173.6:443 tcp
US 93.184.220.29:80 tcp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 76.188.69.20.in-addr.arpa udp
US 8.8.8.8:53 160.252.72.23.in-addr.arpa udp
US 8.8.8.8:53 185.130.69.20.in-addr.arpa udp

Files

N/A