Based on security database patterns for similar filenames, this file is likely associated with:
Move the .dmg file to the Trash and empty it. spring blossom 2020 - Downloader.dmg
Legitimate software rarely includes "Downloader" in the actual filename of a disk image ( .dmg ). This usually indicates a stub installer that, once opened, downloads and installs additional (often malicious) payloads. Based on security database patterns for similar filenames,
"Spring Blossom 2020" is designed to look like a screensaver, wallpaper pack, or harmless utility. spring blossom 2020 - Downloader.dmg
Inspect your browser (Safari/Chrome/Firefox) for any extensions you don't recognize and remove them.
If you have already opened the file, run a scan with a reputable tool like Malwarebytes for Mac to check for lingering LaunchAgents or browser extensions.
Hidden background processes that track your browsing habits.