/usr/lib/x86_64-linux-gnu/mod_rasterlite2.so.1 is in libsqlite3-mod-rasterlite2 1.0.0~rc0+devel1-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/mod_rasterlite2.so.1.0.0