/usr/lib/x86_64-linux-gnu/perl5/ is in libmozilla-ldap-perl 1.5.3-2build4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/5.26/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/LDAP/
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/LDAP/API.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/LDAP/Conn.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/LDAP/Entry.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/LDAP/LDIF.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/Mozilla/LDAP/Utils.pm
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Mozilla/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Mozilla/LDAP/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Mozilla/LDAP/API/
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Mozilla/LDAP/API/API.so
/usr/lib/x86_64-linux-gnu/perl5/5.26/auto/Mozilla/LDAP/API/autosplit.ix