Trojan
Hostile software dressed as something you meant to run. The gift is the rest of the program.
A Trojan pretends to be legitimate software so you will run it. Once inside it can steal, persist, or fetch more hostile code. Some variants download extra files; others carry them in the bundle.
Do not run unsigned 'invoice' macros, cracks, or helpers from a chat. Application control and a browser that will not execute random downloads beat a lecture after the fact.
Fact source: ASD's ACSC glossary.