/usr/lib/linux-tools/4.15.0-1014-azure/perf is in linux-tools-4.15.0-1014-azure 4.15.0-1014.14~16.04.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.15.0-1014-azure/../../linux-azure-tools-4.15.0-1014/perf