Malware Analysis Report

2024-11-13 15:40

Sample ID 230315-sxgxraea22
Target Paid.js
SHA256 52534bdae8aa5b9ba4636d4ba0d9ff60d61e1dc3d1984056ab9968d1c97b3b9c
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

52534bdae8aa5b9ba4636d4ba0d9ff60d61e1dc3d1984056ab9968d1c97b3b9c

Threat Level: Known bad

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

Malicious Activity Summary

vjw0rm persistence trojan worm

Vjw0rm

Blocklisted process makes network request

Drops startup file

Checks computer location settings

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

2023-03-15 15:30

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-15 15:30

Reported

2023-03-15 15:32

Platform

win10v2004-20230220-en

Max time kernel

142s

Max time network

146s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\Paid.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-1-5-21-144354903-2550862337-1367551827-1000\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\Paid.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Paid.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XT2T5P7628 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Paid.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 1924 wrote to memory of 2916 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1924 wrote to memory of 2916 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\Paid.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\Paid.js

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 ourvjworm.duckdns.org udp
TR 194.55.224.80:7974 ourvjworm.duckdns.org tcp
US 8.8.8.8:53 80.224.55.194.in-addr.arpa udp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 139.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 113.238.32.23.in-addr.arpa udp
US 8.8.8.8:53 1.77.109.52.in-addr.arpa udp
NL 8.238.179.126:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 13.107.42.16:443 tcp

Files

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-15 15:30

Reported

2023-03-15 15:32

Platform

win7-20230220-en

Max time kernel

138s

Max time network

142s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\Paid.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\Paid.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Paid.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1563773381-2037468142-1146002597-1000\Software\Microsoft\Windows\CurrentVersion\Run\XT2T5P7628 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Paid.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 1064 wrote to memory of 1860 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1064 wrote to memory of 1860 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1064 wrote to memory of 1860 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\Paid.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\Paid.js

Network

Country Destination Domain Proto
US 8.8.8.8:53 ourvjworm.duckdns.org udp
TR 194.55.224.80:7974 ourvjworm.duckdns.org tcp

Files

N/A