Malware Analysis Report

2025-01-18 12:22

Sample ID 221111-l8hvvsed76
Target DoqzRwcwrP_rekova.js
SHA256 ee4411b1ca11a51baf35f3b51684942160a361f8a40c96e95732bde420edc903
Tags
vjw0rm wshrat 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

ee4411b1ca11a51baf35f3b51684942160a361f8a40c96e95732bde420edc903

Threat Level: Known bad

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

Malicious Activity Summary

vjw0rm wshrat persistence trojan worm

Vjw0rm

WSHRAT

Blocklisted process makes network request

Drops startup file

Checks computer location settings

Adds Run key to start application

Looks up external IP address via web service

Enumerates physical storage devices

Script User-Agent

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-11 10:12

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-11 10:12

Reported

2022-11-11 10:14

Platform

win7-20220812-en

Max time kernel

150s

Max time network

153s

Command Line

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

Signatures

Vjw0rm

trojan worm vjw0rm

WSHRAT

trojan wshrat

Drops startup file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\DoqzRwcwrP_rekova = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\DoqzRwcwrP_rekova.js\"" C:\Windows\system32\wscript.exe N/A
Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DoqzRwcwrP_rekova = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\DoqzRwcwrP_rekova.js\"" C:\Windows\system32\wscript.exe N/A
Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\software\microsoft\windows\currentversion\run C:\Windows\system32\wscript.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1900 wrote to memory of 1020 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1900 wrote to memory of 1020 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1900 wrote to memory of 1020 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\DoqzRwcwrP_rekova.js

C:\Windows\System32\wscript.exe

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

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 ip-api.com udp
N/A 8.8.8.8:53 javaautorun.duia.ro udp
N/A 208.95.112.1:80 ip-api.com tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp

Files

memory/1900-54-0x000007FEFB9B1000-0x000007FEFB9B3000-memory.dmp

memory/1020-55-0x0000000000000000-mapping.dmp

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

MD5 97ba883dc53b4e8e8a59f7b2ae330522
SHA1 94798c7f971e2eaece9a0007d7ac0205bd95688e
SHA256 d75194fd1fd728fc218384206b27c70cf4c08432796bb0e4df18795a7f1c86ea
SHA512 03447bf63bdef9454207edb1c95b62afb1e9663594b096bd56bde0c24f4b7f9302a804569de293cc0bf0ac6b7975021580b4e092c1d9ff9e1b0b331c6fb6b7d6

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-11 10:12

Reported

2022-11-11 10:14

Platform

win10v2004-20220812-en

Max time kernel

145s

Max time network

152s

Command Line

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

Signatures

Vjw0rm

trojan worm vjw0rm

WSHRAT

trojan wshrat

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\kFbNMxwkJZ.js C:\Windows\System32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DoqzRwcwrP_rekova.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DoqzRwcwrP_rekova.js C:\Windows\system32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\kFbNMxwkJZ.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\DoqzRwcwrP_rekova = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\DoqzRwcwrP_rekova.js\"" C:\Windows\system32\wscript.exe N/A
Key created \REGISTRY\MACHINE\software\microsoft\windows\currentversion\run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DoqzRwcwrP_rekova = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\DoqzRwcwrP_rekova.js\"" C:\Windows\system32\wscript.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A
HTTP User-Agent header WSHRAT|94D95F5C|GBQHURCC|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 11/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4876 wrote to memory of 1196 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 4876 wrote to memory of 1196 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\DoqzRwcwrP_rekova.js

C:\Windows\System32\wscript.exe

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

Network

Country Destination Domain Proto
N/A 209.197.3.8:80 tcp
N/A 8.8.8.8:53 javaautorun.duia.ro udp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 8.8.8.8:53 ip-api.com udp
N/A 208.95.112.1:80 ip-api.com tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 20.42.72.131:443 tcp
N/A 8.253.135.241:80 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 209.197.3.8:80 tcp
N/A 209.197.3.8:80 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 8.253.135.241:80 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp
N/A 95.142.119.17:5465 javaautorun.duia.ro tcp
N/A 45.139.105.174:3670 45.139.105.174 tcp

Files

memory/1196-132-0x0000000000000000-mapping.dmp

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

MD5 97ba883dc53b4e8e8a59f7b2ae330522
SHA1 94798c7f971e2eaece9a0007d7ac0205bd95688e
SHA256 d75194fd1fd728fc218384206b27c70cf4c08432796bb0e4df18795a7f1c86ea
SHA512 03447bf63bdef9454207edb1c95b62afb1e9663594b096bd56bde0c24f4b7f9302a804569de293cc0bf0ac6b7975021580b4e092c1d9ff9e1b0b331c6fb6b7d6