Analysis

  • max time kernel
    134s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/06/2024, 21:32

General

  • Target
    2024-06-06_97e32992119b6a30da830294cb6896e8_cryptolocker.exe
  • Size 58KB
  • Sample240606-1dp31scc5v
  • SHA256 ac53e542a6a6fa93f1761f217888703e1b011dd32f60a3dd32f60182fd4c2a17
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 4 IoCs
  • Detects executables built or packed with MPress PE compressor 4 IoCs
  • 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\2024-06-06_97e32992119b6a30da830294cb6896e8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_97e32992119b6a30da830294cb6896e8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2376
    • 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:4800

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 58KB
        • SHA256 2bea4c1257658e7b0046756887d54bd7fa81369ef424b49d0a573ab2f99f5ece
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

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

        memory/2376-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/2376-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/2376-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/2376-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/2376-17-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4800-19-0x0000000002090000-0x0000000002096000-memory.dmp

        memory/4800-25-0x0000000000680000-0x0000000000686000-memory.dmp

        memory/4800-48-0x0000000000500000-0x000000000050F000-memory.dmp