Analysis

  • max time kernel
    94s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2024, 08:35

General

  • Target
    2024-10-12_e103240e92c3205e29846b47d8dc56d2_cryptolocker.exe
  • Size 50KB
  • Sample241012-kg68pssbqa
  • SHA256 c7f47f74269074f77b597213f4965c57b8cd1d6ac9a866cea7ff2741b9a5e1ff
  • MD5 SHA1 SHA512 SSDEEP
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 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-12_e103240e92c3205e29846b47d8dc56d2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-12_e103240e92c3205e29846b47d8dc56d2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4308
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:1952

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        lossy.exe

        • Path C:\Users\Admin\AppData\Local\Temp\lossy.exe
        • Size 50KB
        • SHA256 2f9e14b3dc32359852f193713196fd343ad6b2839d203c504be0b7db2fb41e1d
        • MD5 SHA1 SHA512 SSDEEP

        swenled.exe

        • Path C:\Users\Admin\AppData\Local\Temp\swenled.exe
        • Size 537B
        • SHA256 c5ffd9dbef8cebbf04436e0680847b95be3f8140e3b3d1e99fe7e743799dfd97
        • MD5 SHA1 SHA512

        memory/1952-17-0x0000000000560000-0x0000000000566000-memory.dmp

        memory/1952-18-0x0000000002060000-0x0000000002066000-memory.dmp

        memory/4308-0-0x00000000020C0000-0x00000000020C6000-memory.dmp

        memory/4308-1-0x00000000020C0000-0x00000000020C6000-memory.dmp

        memory/4308-2-0x00000000020E0000-0x00000000020E6000-memory.dmp