/etc/fonts/conf.d/64-wqy-zenhei.conf is in fonts-wqy-zenhei 0.9.45-5ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /etc/fonts/conf.d/../conf.avail/64-wqy-zenhei.conf
/etc/fonts/conf.d/../conf.avail/64-wqy-zenhei.conf