Malware Analysis Report

2025-05-28 15:55

Sample ID 220923-gzygqshcdl
Target eReceipt.js
SHA256 1a49aaae2ba16cc05a96ebe87a81a5cd20de012e6970f3e252dbaf8ee99d3381
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

1a49aaae2ba16cc05a96ebe87a81a5cd20de012e6970f3e252dbaf8ee99d3381

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

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-09-23 06:15

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-09-23 06:15

Reported

2022-09-23 06:17

Platform

win10v2004-20220812-en

Max time kernel

142s

Max time network

151s

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A

Drops startup file

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecOTkqWSWV.js C:\Windows\System32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eReceipt.js C:\Windows\system32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecOTkqWSWV.js C:\Windows\System32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\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 4992 wrote to memory of 3400 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 4992 wrote to memory of 3400 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 4992 wrote to memory of 4352 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 4992 wrote to memory of 4352 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\ecOTkqWSWV.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 javaautorun.duia.ro udp
US 8.8.8.8:53 zeegod.duckdns.org udp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
US 93.184.220.29:80 tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NL 104.110.191.140:80 tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
FR 40.79.150.121:443 tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NL 178.79.208.1:80 tcp
NL 178.79.208.1:80 tcp
NL 178.79.208.1:80 tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp

Files

memory/3400-132-0x0000000000000000-mapping.dmp

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

MD5 c5bfe416f6a801a7424fc79dd8f6ef8d
SHA1 672d15536f43d5565f70d8055b39af59996925d2
SHA256 ba760a5cce3ab662b39760d301d75bd82b2e49328fe917a4135069ffa91dd428
SHA512 85fc096d04dbc442a7871794c0161073cfd95cc69135109d393a774612225a3d372efe577187ccd9f268d07c56d7476c0d234b1651b2932da92680d6aa0d3be4

memory/4352-134-0x0000000000000000-mapping.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-09-23 06:15

Reported

2022-09-23 06:17

Platform

win7-20220812-en

Max time kernel

149s

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
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecOTkqWSWV.js C:\Windows\System32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\ecOTkqWSWV.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 2012 wrote to memory of 2000 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 2012 wrote to memory of 2000 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 2012 wrote to memory of 2000 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 2012 wrote to memory of 1772 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 2012 wrote to memory of 1772 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\schtasks.exe
PID 2012 wrote to memory of 1772 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\ecOTkqWSWV.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 javaautorun.duia.ro udp
US 8.8.8.8:53 zeegod.duckdns.org udp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
US 107.182.129.16:9004 zeegod.duckdns.org tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp
NO 194.5.98.175:5432 javaautorun.duia.ro tcp

Files

memory/2012-54-0x000007FEFBF21000-0x000007FEFBF23000-memory.dmp

memory/2000-55-0x0000000000000000-mapping.dmp

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

MD5 c5bfe416f6a801a7424fc79dd8f6ef8d
SHA1 672d15536f43d5565f70d8055b39af59996925d2
SHA256 ba760a5cce3ab662b39760d301d75bd82b2e49328fe917a4135069ffa91dd428
SHA512 85fc096d04dbc442a7871794c0161073cfd95cc69135109d393a774612225a3d372efe577187ccd9f268d07c56d7476c0d234b1651b2932da92680d6aa0d3be4

memory/1772-58-0x0000000000000000-mapping.dmp