Malware Analysis Report

2024-11-13 15:40

Sample ID 230314-x5hw8shd96
Target Interac.js
SHA256 926bf4e2106127115a1858a76c51849f14d728788d9344592ed9be240268236b
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

926bf4e2106127115a1858a76c51849f14d728788d9344592ed9be240268236b

Threat Level: Known bad

The file Interac.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

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-03-14 19:26

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-03-14 19:26

Reported

2023-03-14 19:28

Platform

win7-20230220-en

Max time kernel

130s

Max time network

150s

Command Line

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

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows\CurrentVersion\Run\A1SELOTALI = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Interac.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 1696 wrote to memory of 1628 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1696 wrote to memory of 1628 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1696 wrote to memory of 1628 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\Interac.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\Interac.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

Analysis: behavioral2

Detonation Overview

Submitted

2023-03-14 19:26

Reported

2023-03-14 19:28

Platform

win10v2004-20230220-en

Max time kernel

136s

Max time network

139s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\Interac.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-1-5-21-1675742406-747946869-1029867430-1000\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\Interac.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Interac.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\A1SELOTALI = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Interac.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 1264 wrote to memory of 3508 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1264 wrote to memory of 3508 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\Interac.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\Interac.js

Network

Country Destination Domain Proto
US 117.18.232.240:80 tcp
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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 80.224.55.194.in-addr.arpa udp
US 8.8.8.8:53 76.38.195.152.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 210.81.184.52.in-addr.arpa udp
US 52.152.110.14:443 tcp
IE 13.69.239.74:443 tcp
US 117.18.232.240:80 tcp
US 117.18.232.240:80 tcp
US 8.8.8.8:53 176.122.125.40.in-addr.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 131.253.33.203:80 tcp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 8.8.8.8:53 106.238.32.23.in-addr.arpa udp

Files

N/A