/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/ is in libffi-platypus-perl 0.45-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/API.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Buffer.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/ConfigData.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Declare.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Lang/
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Lang/ASM.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Lang/C.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Lang/Win32.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Memory.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Record/
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Record.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Record/TieArray.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Type/
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Type.pod
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Type/PointerSizeBuffer.pm
/usr/lib/x86_64-linux-gnu/perl5/5.24/FFI/Platypus/Type/StringPointer.pm