Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 20:34

General

  • Target

    2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe

  • Size

    40KB

  • MD5

    be978a55287044b8de34e04fc66f8f5d

  • SHA1

    67e2e6cbfaf38ff0d1f3d8d40d9dbd7209a71a22

  • SHA256

    98fb975e0ac3a09b7ac20748637ea02229f57fb382afb79546bbfc73d433bd5d

  • SHA512

    a2ba35fa7fb9b1cf892ecf5e45873a7c0f80c7ed4f8ae69519bacbd8ca476eed9fca8a2b5fa4c978a14ce24ffab6a5b7b7b1af89a264ed2eaf7186af6c3bb54f

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYX54I:qDdFJy3QMOtEvwDpjjWMl7TC

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2180
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2932

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          40KB

          MD5

          4a5281e441edff7b7e1f88ab52e7d950

          SHA1

          96b0d22e96c6ece3f67f9f0278d66c70862b672a

          SHA256

          fc0345414b7a5f7a01f104d665af421aea02665649a2b802b94d2c1fddcb18ce

          SHA512

          53876dddc0d2e91f0c3fb706e25bc2a30599236b2b14d395158d6af4197e58811c632dbcc67d2dd881542b845e87dc0c823831c83e22de512a2ef411f59afe9f

        • memory/2180-1-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2180-0-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2180-2-0x0000000000380000-0x0000000000386000-memory.dmp

          Filesize

          24KB

        • memory/2180-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2932-19-0x00000000002A0000-0x00000000002A6000-memory.dmp

          Filesize

          24KB

        • memory/2932-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2932-27-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB