Analysis

  • max time kernel
    95s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/08/2024, 10:23

General

  • Target
    2024-08-02_6d3fad2316b1b1e8ada3e2c5cc647b9c_cryptolocker.exe
  • Size 73KB
  • Sample240802-me59qszcpc
  • SHA256 ba7fde2197aa3b4fbfa2728962e90612fd594a3ffae129aaf68cd9c1f174909d
  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-02_6d3fad2316b1b1e8ada3e2c5cc647b9c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-02_6d3fad2316b1b1e8ada3e2c5cc647b9c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4332
    • 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:876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 73KB
        • SHA256 f2fc358a2ac46b822f0705f326c27caf2bf34e982bc7f459dc72fab8b38c39e4
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misids.exe
        • Size 315B
        • SHA256 d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3
        • MD5 SHA1 SHA512

        memory/876-17-0x0000000000670000-0x0000000000676000-memory.dmp

        memory/876-23-0x0000000000650000-0x0000000000656000-memory.dmp

        memory/4332-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

        memory/4332-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

        memory/4332-2-0x0000000000600000-0x0000000000606000-memory.dmp