.dmg (Apple Disk Image), used for installing software on macOS . Security and Technical Report InDesign version 2021 16.4 - Adobe Community
The "[TNT]" tag indicates the software was distributed by a Russian cracking group known as Team TNT . Adobe_InDesign_2021_v16.4_[TNT].dmg
The file is an installer for Adobe InDesign, specifically a version that has been modified ("cracked") to bypass official licensing requirements. File Identity & Background Version: Adobe InDesign 2021, Version 16.4. .dmg (Apple Disk Image)