ZeroFox Intelligence Cyber Threat Advisory – CryptNet Ransomware

ZeroFox Intelligence Cyber Threat Advisory – CryptNet Ransomware

Product Serial: F-2023-05-10a

TLP:CLEAR

In this advisory, ZeroFox Intelligence discusses observations its researchers have made of a new Ransomware-as-a-Service, dubbed “CryptNet.” CryptNet is marketed as fast and fully undetectable with various capabilities and features, such as the ability to delete shadow copies and disable backup services, offline encryption, and a chat panel for negotiations.

Standing Intelligence Requirements

Deep Dark Web and Criminal Underground

For the most up-to-date list of ZeroFox’s Intelligence Requirements, please visit:

https://cloud.zerofox.com/intelligence/advisories/14956

Link to Download View the full report here.

Scope Note

ZeroFox Intelligence is derived from a variety of sources, including—but not limited to—curated open-source accesses, vetted social media, proprietary data sources, and direct access to threat actors and groups through covert communication channels. Information relied upon to complete any report cannot always be independently verified. As such, ZeroFox applies rigorous analytic standards and tradecraft in accordance with best practices and includes caveat language and source citations to clearly identify the veracity of our Intelligence reporting and substantiate our assessments and recommendations. All sources used in this particular Intelligence product were identified prior to 9:00 AM (EDT) on May 10, 2023; per cyber hygiene best practices, caution is advised when clicking on any third-party links.

Key Findings

• ZeroFox Intelligence assesses that CryptNet is likely to become a notable player within the RaaS ecosystem. “Shrinbaba” is assessed to be credible threat actor, and the strain’s alleged advanced capabilities and attractive profit share offering will likely swiftly attract affiliates. CryptNet has become operational, with two victims identified to date—both in late April 2023.