Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    11/06/2024, 02:29

General

  • Target

    2024-06-11_619377dc86c408f981a42bb9a6339a5a_cryptolocker.exe

  • Size

    43KB

  • MD5

    619377dc86c408f981a42bb9a6339a5a

  • SHA1

    b4f19ab14306d9f2e8b060b0b18d292a239ab671

  • SHA256

    b74f595d973eafd4659bd92beda8af607fc3bdaf52422580e090ae8edeb898cd

  • SHA512

    ec26fac51e339e2cf0967df013daae378d889a54a75813aa33ab831fa58487a611acfbab02144b12aeff5f02c02454b49a40779878ad1629f86e43bd8c681542

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpj66BLbjG9Rva/yYshNhH:i5nkFGMOtEvwDpjR+viHshNx

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-11_619377dc86c408f981a42bb9a6339a5a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_619377dc86c408f981a42bb9a6339a5a_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2544

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \Users\Admin\AppData\Local\Temp\misid.exe

          Filesize

          43KB

          MD5

          6cd3b13ca59290d701cbd407d36c6f54

          SHA1

          422c42737d8642f4c4d54ea85bd31d084bf32598

          SHA256

          b0b501dbcdd2670a0fd9df1b459a8094d682af83add803061bf86cfc0f0654b2

          SHA512

          2b8de4e18afcc9d2e3105d7a69efb983d0d0d969a232ff1c8ab510ee788e6d51bb1dcb1ca91b32b4af650ea53a6bba6e874336134dcd76c64913b26878473e42

        • memory/1560-0-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1560-1-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/1560-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1560-8-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2544-16-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2544-18-0x0000000000370000-0x0000000000376000-memory.dmp

          Filesize

          24KB

        • memory/2544-25-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB