Analysis

  • max time kernel
    133s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/06/2024, 04:47

General

  • Target

    2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe

  • Size

    37KB

  • MD5

    e6332a919f6d13faa300c658360d47e2

  • SHA1

    f6b32e06b64c129a9c696df7382de130bf5be0a7

  • SHA256

    057a66d3ff9ba0c8ebeb0d5e72f5a5533a92ffec743302a2464e48c4c5b66d4e

  • SHA512

    851c69a7ad9b2e304cc2ec85a02e5e846b51d1fedd396cd83314449410ef28139f003ee2ecd7e70339db1b2e72eb83aa374958447c41bac42528959137530111

  • SSDEEP

    384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSyP:btB9g/WItCSsAGjX7e9N0hunRvP

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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_e6332a919f6d13faa300c658360d47e2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3452
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      PID:4636

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          37KB

          MD5

          07f117d9d0fc98289ea59ac0065219ef

          SHA1

          fc64ff823c7284aaf35e9c86e1764b12ba8ae19b

          SHA256

          567bae3e4a48fde04297939b3fe5b34c8c3ef1c47dba555bc33905ba0b20c9ff

          SHA512

          da93f5679a459b20e0bc262a1c27635f74228c7bd56774d7a05bf8619b41f5cc968f77073ac79b9c86095c18aab805d5e02187a580ac804bc29c28f4ded03d11

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

          Filesize

          185B

          MD5

          341f0d964572da44a1c9650341665037

          SHA1

          5003d7dc9b5d6dbbfb37403c8222ba83fa3d4b0f

          SHA256

          cb213ed9ca3a1892286c1fd6552b8ba339f4e62a2d72c9c9151c4848edee4ee3

          SHA512

          a374a3d0c18618c9550b7cf88ce4005f42af135e46c08d08c1be7b3f3012f1184fd82f126168f280da7ead6fbddd5bebdc55547bff3d7c6a440d6f9746479353

        • memory/3452-0-0x0000000002160000-0x0000000002166000-memory.dmp

          Filesize

          24KB

        • memory/3452-1-0x0000000000400000-0x0000000000406000-memory.dmp

          Filesize

          24KB

        • memory/3452-8-0x0000000002160000-0x0000000002166000-memory.dmp

          Filesize

          24KB

        • memory/4636-25-0x00000000020E0000-0x00000000020E6000-memory.dmp

          Filesize

          24KB