Police have been searching for the man since the assault, which occurred in the Hastings suburb of Camberley on Thursday, August 15.
Hira was transferred to Wellington Regional Hospital on Thursday evening in a critical condition.
She died on Sunday, August 18.
Stuff reported that Hira was the youngest of five siblings, and the only girl in the family.
"She was really close to all her cousins on both sides of her family," Tamzyn Skipper said.
Senior youth leader at Equippers Church Hastings, BJ Pui described Hira as a "like a diamond," while speaking to Stuff.
"She had many different facets. She was kind, caring, quirky, sassy, goofy. One thing that stood out was that if she allowed you into her circle, it was for life. These friends here, they are products of that."
A service for Hira was held at Te Aranga Marae on Thursday morning with family and friends gathering to say their final goodbyes.