/usr/share/doc/clamav/changelog.Debian.gz is in clamav 0.97.3+dfsg-2.1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/clamav/../libclamav6/changelog.Debian.gz
/usr/share/doc/clamav/../libclamav6/changelog.Debian.gz