The npm package 'checkout-resend-pos-order-sms-am' version 35.3.3 contains malicious code that downloads and executes platform-specific native binaries from attacker-controlled Cloudflare Workers subdomains. This behavior is unrelated to the package's stated functionality and involves obfuscated runtime string concatenation to evade detection. The malicious payload is saved to concealed filenames and executed detached from the main process, indicating an attempt to hide its presence.