Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/06/2024, 03:24

General

  • Target
    2024-06-17_6e32637a8a6feb44a819c068e4110a8f_cryptolocker.exe
  • Size 78KB
  • Sample240617-dya39ssapc
  • SHA256 66a00c5d36c5ffb189f6011245e5e73eda5481a3a14265cac8f8d9a405e51856
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-17_6e32637a8a6feb44a819c068e4110a8f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-17_6e32637a8a6feb44a819c068e4110a8f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2052
    • 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:2772

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        misid.exe

        • Path C:\Users\Admin\AppData\Local\Temp\misid.exe
        • Size 78KB
        • SHA256 2121b92f64157134e014e62a5585e963cc08bb3a709a95c5e43e2c30ce394f2f
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

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

        memory/2052-0-0x0000000000450000-0x0000000000453000-memory.dmp

        memory/2052-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/2052-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

        memory/2052-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/2052-17-0x0000000000450000-0x0000000000453000-memory.dmp

        memory/2772-19-0x0000000000750000-0x0000000000756000-memory.dmp

        memory/2772-25-0x0000000000730000-0x0000000000736000-memory.dmp