Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2024, 15:49

General

  • Target

    2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe

  • Size

    41KB

  • MD5

    7d3b385c9bba0e80c388a6de65ad0392

  • SHA1

    86db304a427e7fcec60988d20b80d2b3ceed9af1

  • SHA256

    57ac5ce79f88140eacbc77f0be273a7685e56314812068b625fd452cc13616c1

  • SHA512

    49706e8a773e18dd6e2bba348e35e02543347bb1fbfdeeb5f143245010d34bf4aa44c31fa0f436f5e376915efd5770b2ecc6b6287ba7be5efe47b64489beee4d

  • SSDEEP

    768:bA74zYcgT/Ekd0ryfjPIunqpeNswmT3HwnC/:bA6YcA/X6G0W143QQ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_7d3b385c9bba0e80c388a6de65ad0392_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3096
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2272

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          42KB

          MD5

          4ce5ee58bab81c85040b65fb58e3475c

          SHA1

          743e24d5be123bb92a2d9049adb83c2e00b31429

          SHA256

          b96b7f46008804d229d68f9f6e0bfb6ab2828622864f44d99cb410e83196ac02

          SHA512

          1c2b95f7b07d6b148af3a4753924a337298e8af54d24c005e8cc56499731a1d17a74a8ba0a322c7393154c2b9cc2c944d4d5482c53cfd7f867db0cc382e911e4

        • memory/2272-23-0x0000000002210000-0x0000000002216000-memory.dmp

          Filesize

          24KB

        • memory/3096-0-0x0000000002D60000-0x0000000002D66000-memory.dmp

          Filesize

          24KB

        • memory/3096-2-0x0000000003010000-0x0000000003016000-memory.dmp

          Filesize

          24KB

        • memory/3096-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

          Filesize

          24KB