/usr/lib/x86_64-linux-gnu/libQt5Contacts.so.5.0 is in libqt5contacts5 5.0~git20140203~e0c5eebe-0ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libQt5Contacts.so.5.0.0