Analysis

  • max time kernel
    133s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2024, 05:59

General

  • Target

    2024-01-11_5679e8c0069a97b91a46ced439de7f40_cryptolocker.exe

  • Size

    38KB

  • MD5

    5679e8c0069a97b91a46ced439de7f40

  • SHA1

    8ccf01b78fd5358aaa30382a14da9ef471e3189d

  • SHA256

    f95a81f6f6cf3d90f284d3b03a3d60ff8ccb5672bbf68811187fd67828e0f0fa

  • SHA512

    65af465550e7e377701e10a10dda2cd04ac9c5665a609f3bea36fcb6ad4a350c315059145b040036538f5f066d407150b54dff6c74a22269116e945f40a03b97

  • SSDEEP

    768:TS5nQJ24LR7tOOtEvwDpjGqPhqlcnvhx5/xFRd:m5nkFNMOtEvwDpjG8hhXP

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\2024-01-11_5679e8c0069a97b91a46ced439de7f40_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-11_5679e8c0069a97b91a46ced439de7f40_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4064
    • 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:1044

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          38KB

          MD5

          e20ba6b0d421c29a6ce23c18c36c86e3

          SHA1

          4c9a7abfc5910fd0f2e6e2bd1c2bae5253acc56c

          SHA256

          bec1c4de535036ce951f7c22fbf3fb97459261b9c4e16971d532c1e3c0d61f1f

          SHA512

          8eec4d7141e1e1024c488c56552b8c1b220dcab7b1debdc4db9e32fdebd0d40ddcd07b7d82a14288f7f01e698113be04ccc130d65384d518d95f47728b7eea11

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1044-22-0x00000000006D0000-0x00000000006D6000-memory.dmp

          Filesize

          24KB

        • memory/1044-28-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/1044-29-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/4064-0-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/4064-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/4064-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/4064-3-0x0000000002100000-0x0000000002106000-memory.dmp

          Filesize

          24KB

        • memory/4064-10-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB