Analysis

  • max time kernel
    122s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 06:22

General

  • Target

    2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe

  • Size

    35KB

  • MD5

    07736eb5cf17a27831daade0d377be51

  • SHA1

    5a2762c77ffe0ed213f5b52fbc5d8af43fa31511

  • SHA256

    e52eb26a8ee2d0becc4d385b6a80713ba6a9596afda22dc6a4ed9acc6b5a0e9b

  • SHA512

    6b1f1ccd6ca81c2913982fea9e37c800bb16065f52e0f2829218323202363274f2f284405d4bc24aa90d49e2c83d986f6cf2aece9a7063b264ab35412536ae8c

  • SSDEEP

    384:bAvMaNGh4z7CG3POOvbRSLoF/F0QU5XYFnufc/zzo6ckJp0qAgmEzXKxA+T9sW:bAvJCYOOvbRPDEgXRc+BAILieW

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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).

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\demka.exe
      "C:\Users\Admin\AppData\Local\Temp\demka.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      PID:2816

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \Users\Admin\AppData\Local\Temp\demka.exe

          Filesize

          35KB

          MD5

          1e5d9f0a015973378d5a03e496b25543

          SHA1

          af902f323d058c552e9cb5f5dac3c3f171ba0001

          SHA256

          cd02d9a83cc8bbc902766a039cde59f59f3f3633252404dee5569de9c83ba915

          SHA512

          fe467665030928a1a469da9b582e0a0d27cc4f5223826794a45c0fb2f392fc6f28d8de274c6cc5bc0c5aab0a4c7327baf2aa1956ab4b53f183a6725397b0d0a6

        • memory/1276-0-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/1276-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/1276-7-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/2816-23-0x0000000000410000-0x0000000000416000-memory.dmp

          Filesize

          24KB