Analysis

  • max time kernel
    0s
  • max time network
    36s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 07:04

General

  • Target
    2024-06-10_64bb6a2c19c8612bfc4d5751eed7dd16_cryptolocker.exe
  • Size 49KB
  • Sample240610-hv7qaade9t
  • SHA256 7a848670c67dd2ec74ba41e3328681280218354dbb4ac8bac12484c4cd8ade8b
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 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\2024-06-10_64bb6a2c19c8612bfc4d5751eed7dd16_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_64bb6a2c19c8612bfc4d5751eed7dd16_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4016
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2800

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 49KB
        • SHA256 fa3d2e113af5475b47f8b88f2c0e1a367086f3790578ccdaa433e55e62292ff5
        • MD5 SHA1 SHA512 SSDEEP

        misids.exe

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

        memory/2800-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

        memory/2800-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

        memory/4016-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

        memory/4016-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

        memory/4016-8-0x00000000005D0000-0x00000000005D6000-memory.dmp