Malware Analysis Report

2025-06-15 21:05

Sample ID 220817-g8wz9sbgbk
Target irNWRQGlUq_ned7070vjw0m.js
SHA256 bcb25042af4894ddf1c1cd08f5c7a8a0f1c926e9122169b441e5182ca6424330
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

bcb25042af4894ddf1c1cd08f5c7a8a0f1c926e9122169b441e5182ca6424330

Threat Level: Known bad

The file irNWRQGlUq_ned7070vjw0m.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

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-17 06:29

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-17 06:29

Reported

2022-08-17 06:31

Platform

win7-20220812-en

Max time kernel

144s

Max time network

148s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\irNWRQGlUq_ned7070vjw0m.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\irNWRQGlUq_ned7070vjw0m.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\irNWRQGlUq_ned7070vjw0m.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\2VDZRWDULI = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\irNWRQGlUq_ned7070vjw0m.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 1528 wrote to memory of 1076 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1528 wrote to memory of 1076 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1528 wrote to memory of 1076 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1528 wrote to memory of 1764 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1528 wrote to memory of 1764 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1528 wrote to memory of 1764 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\irNWRQGlUq_ned7070vjw0m.js

C:\Windows\System32\wscript.exe

"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\DdvHbzgOOu.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\irNWRQGlUq_ned7070vjw0m.js

Network

Country Destination Domain Proto
NL 185.157.162.75:7070 185.157.162.75 tcp

Files

memory/1528-54-0x000007FEFBDE1000-0x000007FEFBDE3000-memory.dmp

memory/1076-55-0x0000000000000000-mapping.dmp

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

MD5 04061d4008e6b4a69043fb096e6885ac
SHA1 3f5173c3d152b1503c7f1be11d05f9dc9a67b434
SHA256 9218ad83bc4db36160c1a0e76168f63ffb64c1e480af59dce5c76e9b9561a37d
SHA512 37af42458de31311c322ea0b7088c01148663414633d5842185f149844f874fe85379f4e440376be781097285e50398ab61241b390cc7c68542d1fa4fb31da81

memory/1764-57-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-17 06:29

Reported

2022-08-17 06:31

Platform

win10v2004-20220812-en

Max time kernel

138s

Max time network

150s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\irNWRQGlUq_ned7070vjw0m.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-1-5-21-1502147629-2175634256-330282290-1000\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\irNWRQGlUq_ned7070vjw0m.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\irNWRQGlUq_ned7070vjw0m.js C:\Windows\system32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\2VDZRWDULI = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\irNWRQGlUq_ned7070vjw0m.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 3100 wrote to memory of 1492 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 3100 wrote to memory of 1492 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 3100 wrote to memory of 488 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 3100 wrote to memory of 488 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe

Processes

C:\Windows\system32\wscript.exe

wscript.exe C:\Users\Admin\AppData\Local\Temp\irNWRQGlUq_ned7070vjw0m.js

C:\Windows\System32\wscript.exe

"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\DdvHbzgOOu.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\irNWRQGlUq_ned7070vjw0m.js

Network

Country Destination Domain Proto
NL 185.157.162.75:7070 185.157.162.75 tcp
US 13.89.179.9:443 tcp
US 93.184.221.240:80 tcp
BE 67.24.25.254:80 tcp

Files

memory/1492-135-0x0000000000000000-mapping.dmp

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

MD5 04061d4008e6b4a69043fb096e6885ac
SHA1 3f5173c3d152b1503c7f1be11d05f9dc9a67b434
SHA256 9218ad83bc4db36160c1a0e76168f63ffb64c1e480af59dce5c76e9b9561a37d
SHA512 37af42458de31311c322ea0b7088c01148663414633d5842185f149844f874fe85379f4e440376be781097285e50398ab61241b390cc7c68542d1fa4fb31da81

memory/488-137-0x0000000000000000-mapping.dmp