/usr/share/applications/hp-sendfax.desktop is in hplip-gui 3.14.6-1+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | [Desktop Entry]
Name=HPLIP Fax Utility
GenericName=Fax Utility
Comment=HPLIP Fax Utility
Exec=sh -c 'STARTED_FROM_MENU=yes /usr/bin/hp-sendfax'
Icon=/usr/share/pixmaps/HPmenu.xpm
Categories=Application;Office;
Terminal=false
Type=Application
StartupNotify=false
NoDisplay=false
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