Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 04:38

General

  • Target

    2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe

  • Size

    75KB

  • MD5

    1919babdd13e7946899294d8b5718ba2

  • SHA1

    f224325d6d767774d3992b8567808e7e425cc51f

  • SHA256

    9c70e07e47b6adbed6d7a15793e9df12bc9f628dbe6820da8e8af829fd1f2e0b

  • SHA512

    ad70ffaa600f83dc217946efa2f14a6e0026d274aae7f1b1d627dc0b15e45b5ee8398b34e25ba65f988605aa090135ad27c45ce17f952b1b4602145f16a1029d

  • SSDEEP

    768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMs63a/:u6QFElP6n+gWMOtEvwDpjJGYQbX/

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_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_1919babdd13e7946899294d8b5718ba2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2820
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:3012

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\asih.exe

          Filesize

          75KB

          MD5

          6f5b9a0972c52c5b3fc3ce0c9d5cb5b1

          SHA1

          c2326c6b578d72438ebfcdb83a5a774e8b90a8c1

          SHA256

          8e6470c0e48b3a3f43e55cd21ac7c4d0fc11b058204e30bcfd0f47368de09161

          SHA512

          100009a04692a9c8bea96dd393160621e7abc6ecd6bf4fda0eac894aa777c32741c8ba6ca9592aef3baa93ecd2cde2eeab8db8b8a6ceffec271c55db8f1dbc57

        • memory/2820-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/2820-1-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/2820-8-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/3012-17-0x00000000006B0000-0x00000000006B6000-memory.dmp

          Filesize

          24KB

        • memory/3012-18-0x00000000006D0000-0x00000000006D6000-memory.dmp

          Filesize

          24KB