The package shows some suspicious behaviors, like the inclusion of executables (fastlist-0.3.0-x64.exe and fastlist-0.3.0-x86.exe) and the delayed process termination. However, these can have legitimate uses. The YARA rule matches for python_exec_complex are on non-python files, which is a false positive signal. The http_url_with_msi match is also not strong enough evidence on its own. Given the project's popularity (33k+ stars, 1k+ forks) and the SLSA provenance verification, it's unlikely to be malware. The evidence isn't strong enough to classify it as malicious.