Unscrupulous sellers have tried to pass Armadillidium vulgare "Punta Cana" or Cubaris "Platinion" as .exe. A true cubaris.exe has a distinct body slope —the anterior is flat like a keyboard key, while the posterior arches sharply.

If the file turns out to be a trojan or malware strain masking under the name cubaris.exe , it could expose your system to several severe vulnerabilities:

In-game messages pop up, claiming the isopods are "starving," even if the food bar is full. The Climax: Crossing the Screen

Based on the search results, appears to be a fictional or analog horror-related "computer virus" rather than a real, widely known malicious program.