Analysis

  • max time kernel
    94s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 11:16

General

  • Target

    2024-09-06_84149f6da7bf3c9581850788dd0dcb3b_cryptolocker.exe

  • Size

    72KB

  • MD5

    84149f6da7bf3c9581850788dd0dcb3b

  • SHA1

    2682336ccf44afb6441087dfe2201c287c7ae394

  • SHA256

    f581a6003502a1d3d8728325adc6d33a3e8685a41b93335e9af53bd54faabdfb

  • SHA512

    fd1d10a2613c87cb1d0d401ed94a41c0a203229f5c9161662e34b19f72d4b33f167cd1cf62059ad519ecdb349dbc38b22738e664cabecd22cb8c804a76a8d603

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/R8:vj+jsMQMOtEvwDpj5HZYTjipvF24k

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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-06_84149f6da7bf3c9581850788dd0dcb3b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_84149f6da7bf3c9581850788dd0dcb3b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1044
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2324

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          72KB

          MD5

          e2940786b3c5f605db9c3f11c4895c4d

          SHA1

          553446e1beef4034cb268f70ffb16c12490547dc

          SHA256

          0e0583c6a790c30e1f9bf3c9bbd945a13ebc057c3a446680a3a0255e3451cdcf

          SHA512

          3ebb6fcda4ef08e2fb4370353cce84d6acbf57a5342ba074365a491442704acd7ff4c140a9f4d9db3bc4060960af5b3fc90c619d0c13c1143c13b675fc0e7c8b

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1044-0-0x0000000000630000-0x0000000000636000-memory.dmp

          Filesize

          24KB

        • memory/1044-1-0x0000000000630000-0x0000000000636000-memory.dmp

          Filesize

          24KB

        • memory/1044-2-0x0000000000650000-0x0000000000656000-memory.dmp

          Filesize

          24KB

        • memory/2324-17-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/2324-18-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

          Filesize

          24KB