Malware Analysis Report

2025-01-18 12:23

Sample ID 221123-g4bhrsgh7s
Target AWB NO - 4806763435.js
SHA256 7367743f876ffc7a318d768e51dd4b9323b8e7561b67827eca9ab0a2c1e670e4
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

7367743f876ffc7a318d768e51dd4b9323b8e7561b67827eca9ab0a2c1e670e4

Threat Level: Known bad

The file AWB NO - 4806763435.js was found to be: Known bad.

Malicious Activity Summary

vjw0rm wshrat persistence trojan worm

WSHRAT

Vjw0rm

Blocklisted process makes network request

Drops startup file

Checks computer location settings

Looks up external IP address via web service

Adds Run key to start application

Enumerates physical storage devices

Script User-Agent

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-23 06:21

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-23 06:21

Reported

2022-11-23 06:23

Platform

win7-20220812-en

Max time kernel

149s

Max time network

152s

Command Line

wscript.exe "C:\Users\Admin\AppData\Local\Temp\AWB NO - 4806763435.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\AWB NO - 4806763435.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AWB NO - 4806763435.js C:\Windows\system32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\njeyOecDmy.js C:\Windows\System32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\njeyOecDmy.js C:\Windows\System32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\software\microsoft\windows\currentversion\run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\AWB NO - 4806763435 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\AWB NO - 4806763435.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\AWB NO - 4806763435 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\AWB NO - 4806763435.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|5C41F0CB|ZERMMMDR|Admin|Microsoft Windows 7 Ultimate |plus|nan-av|false - 23/11/2022|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 - 23/11/2022|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 - 23/11/2022|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 - 23/11/2022|JavaScript-v3.4|NL:Netherlands N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1736 wrote to memory of 1168 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1736 wrote to memory of 1168 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 1736 wrote to memory of 1168 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\AWB NO - 4806763435.js"

C:\Windows\System32\wscript.exe

"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\njeyOecDmy.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 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 8.8.8.8:53 goodies.dynamic-dns.net udp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 8.8.8.8:53 wshsoft.company udp
N/A 194.59.164.67:80 wshsoft.company tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp

Files

memory/1736-54-0x000007FEFB9B1000-0x000007FEFB9B3000-memory.dmp

memory/1168-55-0x0000000000000000-mapping.dmp

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

MD5 cb7b1e25dbd510808b9f4da5e42bcdfb
SHA1 774997619f8555040c73370956befa0499517d4e
SHA256 17507b4207dca3a61f28569f7d223da77df9584e003ba77844d75564a0bcfbe2
SHA512 dc703ce8d1660886afd65f4b1e65ccc7a6999d4f5fc2a7151a73d6d0f1cc9a35ece14e4bffc04353a2c311a0376516bd19b2eca7cbdb4c9f00a7e95d9c70cb6b

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-23 06:21

Reported

2022-11-23 06:23

Platform

win10v2004-20220812-en

Max time kernel

142s

Max time network

152s

Command Line

wscript.exe "C:\Users\Admin\AppData\Local\Temp\AWB NO - 4806763435.js"

Signatures

Vjw0rm

trojan worm vjw0rm

WSHRAT

trojan wshrat

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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\njeyOecDmy.js C:\Windows\System32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AWB NO - 4806763435.js C:\Windows\system32\wscript.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AWB NO - 4806763435.js C:\Windows\system32\wscript.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\njeyOecDmy.js C:\Windows\System32\wscript.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\software\microsoft\windows\currentversion\run C:\Windows\system32\wscript.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\AWB NO - 4806763435 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\AWB NO - 4806763435.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\AWB NO - 4806763435 = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Local\\Temp\\AWB NO - 4806763435.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|18024990|TMKNGOMU|Admin|Microsoft Windows 10 Pro|plus|nan-av|false - 23/11/2022|JavaScript-v3.4|01:Unknown N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4308 wrote to memory of 1084 N/A C:\Windows\system32\wscript.exe C:\Windows\System32\wscript.exe
PID 4308 wrote to memory of 1084 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\AWB NO - 4806763435.js"

C:\Windows\System32\wscript.exe

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

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 javaautorun.duia.ro udp
N/A 8.8.8.8:53 ip-api.com udp
N/A 208.95.112.1:80 ip-api.com tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 209.197.3.8:80 tcp
N/A 209.197.3.8:80 tcp
N/A 8.8.8.8:53 goodies.dynamic-dns.net udp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 20.189.173.4:443 tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 87.248.202.1:80 tcp
N/A 87.248.202.1:80 tcp
N/A 87.248.202.1:80 tcp
N/A 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp
N/A 104.144.64.172:9202 goodies.dynamic-dns.net tcp
N/A 41.217.6.6:5465 javaautorun.duia.ro tcp

Files

memory/1084-132-0x0000000000000000-mapping.dmp

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

MD5 cb7b1e25dbd510808b9f4da5e42bcdfb
SHA1 774997619f8555040c73370956befa0499517d4e
SHA256 17507b4207dca3a61f28569f7d223da77df9584e003ba77844d75564a0bcfbe2
SHA512 dc703ce8d1660886afd65f4b1e65ccc7a6999d4f5fc2a7151a73d6d0f1cc9a35ece14e4bffc04353a2c311a0376516bd19b2eca7cbdb4c9f00a7e95d9c70cb6b