/usr/lib/x86_64-linux-gnu/libtotem-plparser-mini.so.18 is in libtotem-plparser18 3.10.6-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libtotem-plparser-mini.so.18.1.0