/usr/lib/x86_64-linux-gnu/ is in libgtk2-trayicon-perl 0.06-2build2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/perl5/
/usr/lib/x86_64-linux-gnu/perl5/5.22/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/TrayIcon/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/TrayIcon/Install/
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/TrayIcon/Install/trayicon.typemap
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/TrayIcon/Install/Files.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/TrayIcon/Install/trayicon-autogen.h
/usr/lib/x86_64-linux-gnu/perl5/5.22/Gtk2/TrayIcon.pm
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Gtk2/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Gtk2/TrayIcon/
/usr/lib/x86_64-linux-gnu/perl5/5.22/auto/Gtk2/TrayIcon/TrayIcon.so