/usr/lib/x86_64-linux-gnu/libcrypto.so is in libssl1.0-dev 1.0.2n-1ubuntu5.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0
/usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0