Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/06/2024, 15:29

General

  • Target

    2024-06-19_41f078ef3ca527ebdcc1b91cb0bbe910_cryptolocker.exe

  • Size

    75KB

  • MD5

    41f078ef3ca527ebdcc1b91cb0bbe910

  • SHA1

    249cfb50cbd0688adeb32e9dda4bdc31889af7e8

  • SHA256

    e2a0817a7212b95d492e63952b20394eb85c9d65c92f74d255fb7232d8993c38

  • SHA512

    edd548738b7208549887b9c2d3cf9b10f8508611452aa834969b7bf405e912436a72739c6f1901263c3ad06b9d3eac541b83546f5b1343ad37af7be2223ba656

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRXrZSUPa:xj+VGMOtEvwDpjubwQEI8UPa

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\2024-06-19_41f078ef3ca527ebdcc1b91cb0bbe910_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-19_41f078ef3ca527ebdcc1b91cb0bbe910_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3996
    • 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:1248

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          75KB

          MD5

          13f1da68775ba9ac3a1ff828d94ad9cc

          SHA1

          4f64fcce04493fd7bdd1d507f9fb4ae00d142e28

          SHA256

          077385f0745040b090de085c56b2d623964a2720390f53d00a37d37f4649e1e6

          SHA512

          25a43e2db4a3db6f89bc4a5d371f31960c6fc1be3b74ec789bda94f2f10caf218c8dbab6988bf9c2592f4fc8eb3d05f9d47b16acd50c38ea19f6509801bbf0f5

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1248-18-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1248-20-0x0000000000680000-0x0000000000686000-memory.dmp

          Filesize

          24KB

        • memory/1248-26-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1248-49-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3996-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3996-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/3996-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

          Filesize

          24KB

        • memory/3996-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/3996-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB