Analysis

  • max time kernel
    143s
  • max time network
    151s
  • 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, 17:34

General

  • Target
    2024-01-25_a9d2346b879000d8683da1102604210e_cryptolocker.exe
  • Size 40KB
  • Sample240125-v5gcascffn
  • SHA256 9428e9731d6599a663b3e02e4baa2ad00d2f764653bb39abbd40fc486bbbbfb5
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Kinsing

    Kinsing is a loader written in Golang.

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 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_a9d2346b879000d8683da1102604210e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-25_a9d2346b879000d8683da1102604210e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4896
    • 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:3836

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 40KB
        • SHA256 c015aba637a09e4c1c583ab410e6a5e42d9c9c88966bd1cff8189a6ec793ca2d
        • MD5 SHA1 SHA512 SSDEEP

        memory/3836-17-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/3836-20-0x0000000002070000-0x0000000002076000-memory.dmp

        memory/3836-22-0x0000000000520000-0x0000000000526000-memory.dmp

        memory/3836-53-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4896-0-0x0000000000500000-0x000000000050F000-memory.dmp

        memory/4896-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

        memory/4896-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

        memory/4896-3-0x0000000000810000-0x0000000000816000-memory.dmp

        memory/4896-18-0x0000000000500000-0x000000000050F000-memory.dmp