Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 06:24

General

  • Target

    2024-06-10_0bfc385a9d8c805bafb589ac44a9e816_cryptolocker.exe

  • Size

    65KB

  • MD5

    0bfc385a9d8c805bafb589ac44a9e816

  • SHA1

    607eac61e18d09918b7f53e00c0be18aaaa28feb

  • SHA256

    62fc1fb6268f639a8837e91335df61692fc1d5ae0a1d360b05d67695c242bf2d

  • SHA512

    18475f0ac59e9ef71b4a6ae1196b1215f800b5606d63bbcc6651b9934d4340e74c4e4a64bb21642c374918f8b32db8b4a988629d8a0d0f7e6c2ffdf67282559f

  • SSDEEP

    1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsiena:BbdDmjr+OtEvwDpjM8Ta

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • UPX dump on OEP (original entry point) 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-10_0bfc385a9d8c805bafb589ac44a9e816_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_0bfc385a9d8c805bafb589ac44a9e816_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2860
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2456

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\asih.exe

          Filesize

          65KB

          MD5

          af768c4a8b2edc15342eff891154f4f6

          SHA1

          dc788f640da8d2442e894ec00d6732697e903c70

          SHA256

          cd5db6fd421b2dbfb106ee7af91dfea1be8c70c0eda54fe2bc49551154cd8dfb

          SHA512

          3849c63c00c3e0e487d6e9c807ccaaace442db49cd61c69650cea832c43000aa909097d47f4a6280f179a68e555bd5b8970c5ef51a6f92f1daacd678be5dd766

        • memory/2456-25-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2456-18-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/2456-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2860-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2860-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2860-2-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/2860-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2860-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB