Malware Analysis Report

2025-06-15 21:05

Sample ID 220824-h4ytqsbba8
Target QvLXNFAtqb_Tadexax2223.js
SHA256 4e758da9d292aa5126efb6ad52e26742985680e554f5491544a9fea1af837799
Tags
vjw0rm 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

4e758da9d292aa5126efb6ad52e26742985680e554f5491544a9fea1af837799

Threat Level: Known bad

The file QvLXNFAtqb_Tadexax2223.js was found to be: Known bad.

Malicious Activity Summary

vjw0rm trojan worm

Vjw0rm

Blocklisted process makes network request

Checks computer location settings

Drops startup file

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-24 07:18

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-24 07:18

Reported

2022-08-24 07:21

Platform

win7-20220812-en

Max time kernel

170s

Max time network

185s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\QvLXNFAtqb_Tadexax2223.js

Signatures

Vjw0rm

trojan worm vjw0rm

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QvLXNFAtqb_Tadexax2223.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QvLXNFAtqb_Tadexax2223.js C:\Windows\system32\wscript.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1208 wrote to memory of 624 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1208 wrote to memory of 624 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1208 wrote to memory of 624 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\QvLXNFAtqb_Tadexax2223.js

C:\Windows\System32\wscript.exe

"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\BoINCSmfdi.js"

Network

Country Destination Domain Proto
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp

Files

memory/1208-54-0x000007FEFC0D1000-0x000007FEFC0D3000-memory.dmp

memory/624-55-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\BoINCSmfdi.js

MD5 8199ee5c636954199baf737a99ce0e47
SHA1 7a533e8dbacb75bd255650d4e24033c1d252e556
SHA256 e8467cdda44971d238500b8776ddbd6d19454894574f135fb64349c7f863332b
SHA512 22cb45d943917cf11fa6101f13ffebd869e92b8b31a8eb29bb3e16fab36fbcf919cd2dd6a6b525800887a68091f244d1e055218b09e14ac7e16c10948df903ed

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-24 07:18

Reported

2022-08-24 07:20

Platform

win10v2004-20220812-en

Max time kernel

150s

Max time network

149s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\QvLXNFAtqb_Tadexax2223.js

Signatures

Vjw0rm

trojan worm vjw0rm

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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\QvLXNFAtqb_Tadexax2223.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\QvLXNFAtqb_Tadexax2223.js C:\Windows\system32\wscript.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2412 wrote to memory of 1288 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 2412 wrote to memory of 1288 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\QvLXNFAtqb_Tadexax2223.js

C:\Windows\System32\wscript.exe

"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\BoINCSmfdi.js"

Network

Country Destination Domain Proto
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
US 13.89.179.8:443 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
US 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
NL 87.248.202.1:80 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp
NL 185.157.162.75:2223 tcp

Files

memory/1288-132-0x0000000000000000-mapping.dmp

C:\Users\Admin\AppData\Roaming\BoINCSmfdi.js

MD5 8199ee5c636954199baf737a99ce0e47
SHA1 7a533e8dbacb75bd255650d4e24033c1d252e556
SHA256 e8467cdda44971d238500b8776ddbd6d19454894574f135fb64349c7f863332b
SHA512 22cb45d943917cf11fa6101f13ffebd869e92b8b31a8eb29bb3e16fab36fbcf919cd2dd6a6b525800887a68091f244d1e055218b09e14ac7e16c10948df903ed