The package contains an embedded executable biome.exe. While this raises a flag and warrants careful review, it's not sufficient to classify the package as malware. The project biomejs/biome has a substantial number of stars (23570) and forks (856), suggesting it's a legitimate project. Also, the SLSA provenance is verified. Without further evidence of malicious behavior, the presence of an executable alone is not enough to conclude that the package is malicious, as there are valid use cases for embedding executables.