This file is indexed.

/usr/lib/linux-tools/4.8.0-52-lowlatency/perf is in linux-tools-4.8.0-52-lowlatency 4.8.0-52.55~16.04.1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/linux-tools/4.8.0-52-lowlatency/../../linux-hwe-tools-4.8.0-52/perf