/usr/lib/libtcmalloc_and_profiler.so.0 is in libgoogle-perftools0 1.7-1ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libtcmalloc_and_profiler.so.0.1.0
/usr/lib/libtcmalloc_and_profiler.so.0.1.0