Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/07/2024, 10:27

General

  • Target

    2024-07-23_5670c283feadc9c204140b2ea2b2ef04_cryptolocker.exe

  • Size

    72KB

  • MD5

    5670c283feadc9c204140b2ea2b2ef04

  • SHA1

    cec7d06632ef79a410105f444ffbdb174cb579cc

  • SHA256

    4d92ff0e81457ecaf52967eb7ba976b05ad0741392eec4b9d4cd910922f277a8

  • SHA512

    f449cc9c1280d4389b694ecff2c48d70cc207b5f9db45b7519cecc85a7a501e33045f50f4b13c0b34d599bc762eea033423e9f6c9bfca1bc0f6ff9105f18e8c1

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/Rb:vj+jsMQMOtEvwDpj5HZYTjipvF24D

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-07-23_5670c283feadc9c204140b2ea2b2ef04_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-23_5670c283feadc9c204140b2ea2b2ef04_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5096
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2500

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          73KB

          MD5

          a655e38dd21d2982e8251b2158b8d277

          SHA1

          d1237a766a3759f6cf5ef1f15b3d314e9e1e6355

          SHA256

          bba3f97728cc55d4f8bceba49d71d739be4533c3a06323644d6c1f08d8fc75ca

          SHA512

          cbd05e888a474e7d8b519ac27d6cc7d7bb1bb74c27d5b58c538ea5dcd574bcccea6c77c0f21b6838dcf4a3c29a441680ea72d3a971c3e5526c77274fa861cf87

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2500-17-0x0000000000650000-0x0000000000656000-memory.dmp

          Filesize

          24KB

        • memory/2500-23-0x0000000000620000-0x0000000000626000-memory.dmp

          Filesize

          24KB

        • memory/5096-0-0x0000000002300000-0x0000000002306000-memory.dmp

          Filesize

          24KB

        • memory/5096-1-0x0000000002300000-0x0000000002306000-memory.dmp

          Filesize

          24KB

        • memory/5096-2-0x00000000021A0000-0x00000000021A6000-memory.dmp

          Filesize

          24KB