Flag of Malampa Province, Vanuatu.
Check http://markodehaeck.free.fr/VU.htm, http://www.vexilla-mundi.com/vanuatu_divisions.html and https://www.crwflags.com/fotw/flags/vu-ma.html (different proportions). There is also a variant with smaller symbols and 4-pointed stars at https://bloximages.chicago2.vip.townnews.com/dailypost.vu/content/tncms/assets/v3/editorial/f/d1/fd17dcf2-5212-5da2-8287-c041f029c841/543b185a5efbc.image.jpg.

(Original version by MacedonianBoy based on this flag).
MacedonianBoy