For now, here’s a based on the assumption that this is an APK update for a Delta-branded Android app: Title: Analysis of an Android Application Update: Case Study of Delta-654.479-03.apk
It looks like you’re asking for a paper (an academic or analytical document) about a specific file: --- Download- Delta-654.479-03.apk -217.06 MB- -UPD-
Delta-654.479-03.apk (217.06 MB, with “UPD” in the description). For now, here’s a based on the assumption