Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/10/2024, 08:28

General

  • Target

    2024-10-31_8eac4d5a82c2ed5f051a3aa9b3f0fbbc_cryptolocker.exe

  • Size

    87KB

  • MD5

    8eac4d5a82c2ed5f051a3aa9b3f0fbbc

  • SHA1

    3fb18ed70d54ffd730957135ad9a92fb1c075d2c

  • SHA256

    313b155ecda6d28d9402443d782b6dd9b077ca9aa8ffbdf05d7328b260b21dbd

  • SHA512

    30c19b637f7ec9af3b3d852a9481e160c8d380bd81821418ada40bd520a9fa00dbacc6516aa1d2146531a2fedddbf2e27c7396b549d05cd52ef816279b35e608

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrC+Zr:TCjsIOtEvwDpj5HE/OUHnSMD

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\2024-10-31_8eac4d5a82c2ed5f051a3aa9b3f0fbbc_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_8eac4d5a82c2ed5f051a3aa9b3f0fbbc_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2644
    • 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:5000

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          87KB

          MD5

          4804af98ed5cabff42a87a04dd29b50a

          SHA1

          4e6008f92b7605f58490ce3a5971969fa1084ae3

          SHA256

          f187a52b8f5eddc2fa64ff4060147bbf8501d7e3357160d4cf1bda2f0fa8bb3c

          SHA512

          a28c303649a5138f5124a2985bd166663136626d0839b3f0357b747068d7ade6218cf9ee9477d63cfee8b39cdd7d457fb0259c8555df5faae971d5a23fced7c6

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2644-0-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/2644-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/2644-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/2644-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/2644-17-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/5000-47-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB