Analysis

  • max time kernel
    134s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/01/2024, 15:45

General

  • Target
    2024-01-25_9b695d799002f04cc385da5de40e7ebd_cryptolocker.exe
  • Size 44KB
  • Sample240125-s644msahcp
  • SHA256 3f27c17d7854bd48e89c59d1e5fc0e812ca2f6ef4578c7eaeaf525571d291fd9
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b695d799002f04cc385da5de40e7ebd_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b695d799002f04cc385da5de40e7ebd_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2132
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:2352

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 44KB
        • SHA256 439300ae7db31efe63c19b2f1472539df2444309e72d09cee6ad8d713b0a8f93
        • MD5 SHA1 SHA512 SSDEEP

        memory/2132-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/2132-1-0x0000000002050000-0x0000000002056000-memory.dmp

        memory/2132-2-0x0000000002050000-0x0000000002056000-memory.dmp

        memory/2132-3-0x0000000002070000-0x0000000002076000-memory.dmp

        memory/2132-18-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/2352-53-0x0000000000500000-0x000000000050F000-memory.dmp