Malware Analysis Report

2025-06-15 21:06

Sample ID 220823-nz6lnshba5
Target eReceipt#.js
SHA256 caf7270a354ba192bcb3adbe0ccfe74eed5de20ce99954a5f5ace68a0c7ad265
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

caf7270a354ba192bcb3adbe0ccfe74eed5de20ce99954a5f5ace68a0c7ad265

Threat Level: Known bad

The file eReceipt#.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

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-08-23 11:51

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-08-23 11:51

Reported

2022-08-23 11:53

Platform

win7-20220812-en

Max time kernel

147s

Max time network

152s

Command Line

wscript.exe C:\Users\Admin\AppData\Local\Temp\eReceipt#.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\eReceipt#.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\KYXNMD0WI5 = "\"C:\\Users\\Admin\\eReceipt#.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 1764 wrote to memory of 944 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1764 wrote to memory of 944 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1764 wrote to memory of 944 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1764 wrote to memory of 824 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1764 wrote to memory of 824 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 1764 wrote to memory of 824 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\eReceipt#.js

C:\Windows\System32\wscript.exe

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

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\eReceipt#.js

Network

Country Destination Domain Proto
US 8.8.8.8:53 zeegod.duckdns.org udp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp

Files

memory/1764-54-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmp

memory/944-55-0x0000000000000000-mapping.dmp

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

MD5 90a592e75b596744ef43f1fa1b567842
SHA1 58ef4539d609277c5da366ea038f3d2ec951391f
SHA256 02f55a0ea0071457afc46ea8298e9e7b9e23da7b743c906881c56d94540d76bc
SHA512 6d73b667e7cd7d90550dcfc832ccce00a99769fcad8cff0bf5eefdfb02df09c70d35bf395ea517fcc918f0e4d7237342bfe8f9df9f3cd23504bca94a1d123ef3

memory/824-57-0x0000000000000000-mapping.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-08-23 11:51

Reported

2022-08-23 11:53

Platform

win10v2004-20220812-en

Max time kernel

148s

Max time network

153s

Command Line

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

Signatures

Vjw0rm

trojan worm vjw0rm

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\eReceipt#.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\KYXNMD0WI5 = "\"C:\\Users\\Admin\\eReceipt#.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 4872 wrote to memory of 4996 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 4872 wrote to memory of 4996 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 4872 wrote to memory of 636 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 4872 wrote to memory of 636 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\eReceipt#.js

C:\Windows\System32\wscript.exe

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

C:\Windows\System32\schtasks.exe

"C:\Windows\System32\schtasks.exe" /create /sc minute /mo 30 /tn Skype /tr "C:\Users\Admin\eReceipt#.js

Network

Country Destination Domain Proto
US 93.184.220.29:80 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 zeegod.duckdns.org udp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 93.184.220.29:80 tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
FR 51.11.192.50:443 tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp

Files

memory/4996-132-0x0000000000000000-mapping.dmp

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

MD5 90a592e75b596744ef43f1fa1b567842
SHA1 58ef4539d609277c5da366ea038f3d2ec951391f
SHA256 02f55a0ea0071457afc46ea8298e9e7b9e23da7b743c906881c56d94540d76bc
SHA512 6d73b667e7cd7d90550dcfc832ccce00a99769fcad8cff0bf5eefdfb02df09c70d35bf395ea517fcc918f0e4d7237342bfe8f9df9f3cd23504bca94a1d123ef3

memory/636-134-0x0000000000000000-mapping.dmp