CradleCore, also known as Cradle Ransomware, is a Ransomware-as-a-Service (RaaS) kit currently being sold as source code on the Dark Web for a starting price of 0.35 Bitcoin. It is written in C++ and includes PHP server scripts and a payment panel. It also contains a sandbox-detection feature. CradleCore's developer boasts that the RSA public and private keys work both online and offline, suggesting that this ransomware can complete the encryption process even after an infected system is disconnected from the network. It targets over 300 file extensions in systems running Windows OS, encrypts files using the Blowfish symmetric block cipher, appends .cradle to file names, and drops a ransom note named _HOW_TO_UNLOCK_FILES_.html. CradleCore supports ransom payments in the form of Bitcoin, Ethereum, and Monero.
- Forcepoint provides more information about CradleCore here.
- The NJCCIC is not currently aware of any free decryption tools for CradleCore.