Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    27/05/2024, 18:31

General

  • Target

    2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe

  • Size

    41KB

  • MD5

    61c544f09fa0e68d04821bac0b8d8c5f

  • SHA1

    999dc5534cc80a9bc397caa335ddd4bbf85f22ee

  • SHA256

    75df42b13349bdc574bfa8fb83c1a7788895f15d13f78233db02a0e7d80b9260

  • SHA512

    13e604172d5dd83e65424f2ea39f6f0fde621261f04c41e566bc0c29e70e6d7aeffd083d3dc812b369616bdad587dd09cba706d280576a89bf071ffe50edc5a0

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDkrj:ZzFbxmLPWQMOtEvwDpjLeJAsKcij

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).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_61c544f09fa0e68d04821bac0b8d8c5f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3052

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          41KB

          MD5

          7e8f198120ff6ac44adc22f948157b4c

          SHA1

          4926283e83fb82b3c9783c2484e7e4112277531c

          SHA256

          58f5cfe8c86997acc0bed2a1483340549629f8e534904a734f9fb4a4aa1a5992

          SHA512

          2ba8e69e9249f6ca09b3bcfada47592a7b7322343a173ad7724f99ec7becc4eb5477a1171d323b412ac41ed5f50896520ac307ba0ea43e6f85b967b91e39a0be

        • memory/2088-0-0x0000000000230000-0x0000000000233000-memory.dmp

          Filesize

          12KB

        • memory/2088-2-0x0000000000480000-0x0000000000486000-memory.dmp

          Filesize

          24KB

        • memory/2088-9-0x0000000000440000-0x0000000000446000-memory.dmp

          Filesize

          24KB

        • memory/2088-1-0x0000000000440000-0x0000000000446000-memory.dmp

          Filesize

          24KB

        • memory/3052-16-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/3052-24-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/3052-23-0x0000000000230000-0x0000000000236000-memory.dmp

          Filesize

          24KB

        • memory/3052-25-0x0000000000230000-0x0000000000236000-memory.dmp

          Filesize

          24KB