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
    12/06/2024, 18:42

General

  • Target

    2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe

  • Size

    75KB

  • MD5

    b6b23973a6c384054e42e3d3eb6ab651

  • SHA1

    5b06b1a6e570892d3503c5782ad86f2d3666129b

  • SHA256

    283a329004a5a20f34ba0370a84245fade9191d3037cb43f2a333911ea28f652

  • SHA512

    78cc899a07f54c47ce461384dee5582df7808b745dd4201ac5d4ca770ed07d008063017a0ff7b20c8576efac6b872b59ee99e611776b50f2952f54df04cac78c

  • SSDEEP

    768:u6LsoEEeegiZPvEhHSG+gZgtOOtEvwDpjeY10Y/YMsi:u6QFElP6n+gWMOtEvwDpjJGYQbi

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\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2944
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:1560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    549a8d687b375a4a6886d65780375713

    SHA1

    21c556a1aeff89764e91dcad2f331910444c4031

    SHA256

    862dc6c6cbc5a8e8db068477b4b4f66597c646689338d61fb234a9d192804583

    SHA512

    6457545e49e33a5d2baec85ef39ffb7afe693c50a8450d6e2c0ea4fa2ee6249717534ef2c2ca67b015ec371547be6b24717598e5511504dc70559100963297df

  • memory/1560-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/1560-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/2944-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2944-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2944-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB