This file is indexed.

/usr/lib/x86_64-linux-gnu/libQt5QuickParticles.so is in qtdeclarative5-dev 5.5.1-2ubuntu6.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/libQt5QuickParticles.so.5.5.1