Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 06:55

General

  • Target

    2024-08-25_a5c53c784caebca86aac66012d5ee96b_cryptolocker.exe

  • Size

    48KB

  • MD5

    a5c53c784caebca86aac66012d5ee96b

  • SHA1

    3648ccead1881688c1412e6b0dff122c697a6dce

  • SHA256

    6b28dce04d724d8c0ee27a02f3d2e5c5cf251ce8cfe4d13f04026054c6811049

  • SHA512

    162ad625a483fdf6fd3f8b49f0f61e2557403dcfcd178dafd065b7c0e1376946cd682f622acbf0571f50190825e75ce875d06d6eb5211a01e77c803123855c8d

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatK:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7W

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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-25_a5c53c784caebca86aac66012d5ee96b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_a5c53c784caebca86aac66012d5ee96b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5020
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4624

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          48KB

          MD5

          cc71104963a1548e119cb0d6d5e084bf

          SHA1

          c016fa6a5802fa2732de63ec511eba9b3006bcaf

          SHA256

          9409daeba98ce0fd886bd969ee8e45e24b5b4185ced45b99847a613f778dc02f

          SHA512

          ee7e164c11f2db38246789e4a589dc55e2ee23c0fbd18adfc5c295aa6468801a208f9a86c9b87925aa89f196d1b93643915948a5371253eda4d8f6344cc32cd0

        • memory/4624-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/5020-2-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/5020-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

          Filesize

          24KB

        • memory/5020-0-0x00000000020D0000-0x00000000020D6000-memory.dmp

          Filesize

          24KB