Analysis

  • max time kernel
    143s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/08/2023, 16:15

General

  • Target

    b134d9a062f1e89c77ef5b9b72c8c61c_cryptolocker_JC.exe

  • Size

    39KB

  • MD5

    b134d9a062f1e89c77ef5b9b72c8c61c

  • SHA1

    e65644025f31ad27db3daa6614b0d9e486b91e01

  • SHA256

    e6c4c3d9b1c62f40e1264d0c21e0d363efbe529cb012692cdab0fce70295bd0b

  • SHA512

    2b2b9cfa519cb350db198ac8107660ae95a2b1c40ed8429d8028c68efce4d5f28aa135cc9ae884f8418b926aec74c3be155e69e7d3c90b769595b92b1cd6b3ba

  • SSDEEP

    384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf6XT+72kmGYjlQxIxD:bgX4zYcgTEu6QOaryfjqDlC7rYZQKV

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b134d9a062f1e89c77ef5b9b72c8c61c_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\b134d9a062f1e89c77ef5b9b72c8c61c_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2136
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1404

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          40KB

          MD5

          0bb8f6656d52ecf95e49245e04155940

          SHA1

          a293300f688f377e6b61ffb3b765003c0341332a

          SHA256

          99ee886bd86e03e4f569b961b3e3897e43e360450acbfad5e07779b6a1d01662

          SHA512

          0bdff695c7a03e36737e9d341d3631a5adb6cb0a91fc8e6a06116db4d8aa3fba004f92f84c0f3971b7d71b773463054b7b2eace5fe28fc23a5dcd8592fc5b071

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

          Filesize

          40KB

          MD5

          0bb8f6656d52ecf95e49245e04155940

          SHA1

          a293300f688f377e6b61ffb3b765003c0341332a

          SHA256

          99ee886bd86e03e4f569b961b3e3897e43e360450acbfad5e07779b6a1d01662

          SHA512

          0bdff695c7a03e36737e9d341d3631a5adb6cb0a91fc8e6a06116db4d8aa3fba004f92f84c0f3971b7d71b773463054b7b2eace5fe28fc23a5dcd8592fc5b071

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

          Filesize

          40KB

          MD5

          0bb8f6656d52ecf95e49245e04155940

          SHA1

          a293300f688f377e6b61ffb3b765003c0341332a

          SHA256

          99ee886bd86e03e4f569b961b3e3897e43e360450acbfad5e07779b6a1d01662

          SHA512

          0bdff695c7a03e36737e9d341d3631a5adb6cb0a91fc8e6a06116db4d8aa3fba004f92f84c0f3971b7d71b773463054b7b2eace5fe28fc23a5dcd8592fc5b071

        • memory/1404-17-0x0000000002190000-0x0000000002196000-memory.dmp

          Filesize

          24KB

        • memory/1404-18-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

          Filesize

          24KB

        • memory/2136-0-0x0000000002350000-0x0000000002356000-memory.dmp

          Filesize

          24KB

        • memory/2136-1-0x0000000002350000-0x0000000002356000-memory.dmp

          Filesize

          24KB

        • memory/2136-2-0x0000000003150000-0x0000000003156000-memory.dmp

          Filesize

          24KB