You say she is a mix right, well what is she mixed w/? it may be a floppy eared dog. You say she looks like nothing besides a malamute, well she does look like something else, some breed w/ floppy ears.
When they are young puppies you can try to tape the ears up w/ special tape but for it to work it basically depends on the size (tall & thickness) of the ears. Occasionnally you will get a purebred erect eared dog & the ears just won't stay up.

I would just leave her be, she is in natural stage, why would want to change that?