CryptNET
Intelligence Profile
According to OALabs, this ransomware has the following features:
* Files are encrypted with AES CBC using a generated 256 bit key and IV.
* The generated AES keys are encrypted using a hard coded RSA key and appended to the encrypted files.
Threat Analysis
CryptNET is a high-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of financial.
Financially motivated threat actors like CryptNET prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.
With high sophistication, CryptNET is capable of targeted intrusions using adapted commodity tools alongside custom implants, maintaining operational security and evading standard detection mechanisms.