Analysis

  • max time kernel
    140s
  • max time network
    152s
  • 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, 15:48

General

  • Target
    2024-01-25_bc5699063b4aa91e5ad6c6aafc867718_cryptolocker.exe
  • Size 60KB
  • Sample240125-s8vmzsaac9
  • SHA256 07e565a99ce6b79c029f0d58c19c2c200508aedc320dc1ea79b467008a0a55be
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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_bc5699063b4aa91e5ad6c6aafc867718_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_bc5699063b4aa91e5ad6c6aafc867718_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4480
    • 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:1132

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 60KB
        • SHA256 47364300a085cc9a65348fa8ac06ebf69c86cd542c6e60f2afc5eb8a2505b7e0
        • MD5 SHA1 SHA512 SSDEEP

        memory/1132-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

        memory/1132-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

        memory/4480-0-0x00000000021A0000-0x00000000021A6000-memory.dmp

        memory/4480-1-0x00000000021A0000-0x00000000021A6000-memory.dmp

        memory/4480-2-0x00000000021C0000-0x00000000021C6000-memory.dmp