/usr/lib/pm-utils/sleep.d/95hdparm-apm is in hdparm 9.43-1ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/pm-utils/sleep.d/../power.d/95hdparm-apm
/usr/lib/pm-utils/sleep.d/../power.d/95hdparm-apm