/usr/lib/x86_64-linux-gnu/perl5/ is in libb-hooks-op-annotation-perl 0.44-2build2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.22/
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/OP/
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/OP/Annotation/
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/OP/Annotation/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/OP/Annotation/Install/Files.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/OP/Annotation/Install/hook_op_annotation.h
/usr/lib/x86_64-linux-gnu/perl5/5.22/B/Hooks/OP/Annotation.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/B/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/B/Hooks/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/B/Hooks/OP/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/B/Hooks/OP/Annotation/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/B/Hooks/OP/Annotation/Annotation.so