TODDYCAT

RANSOMWARE

TODDYCAT is an elusive ransomware group whose primary targets remain undefined due to a lack of confirmed data, but their use of high-severity vulnerabilities suggests they may focus on large enterprises or critical infrastructure where such exploits can have significant impact. The group's initial access method and specific operational tactics are also unclear, though the presence of multiple critical and high severity CVEs indicates sophistication in identifying and exploiting vulnerabilities to gain a foothold within targeted networks. TODDYCAT does not appear to engage in double extortion or data theft as a primary tactic but focuses on encrypting files for ransom demands, distinguishing it from other groups that may leverage exfiltrated data for additional leverage.

The technical footprint of TODDYCAT is characterized by a preference for critical and high-severity vulnerabilities, particularly those related to remote code execution (RCE) and authentication bypass. The group's use of predicted CVEs without confirmed exploitation suggests they operate with a proactive approach to vulnerability research, potentially leveraging zero-day exploits or near-zero-day vulnerabilities before patches are widely available. Defenders should prioritize the timely patching of critical systems, especially those related to network infrastructure and application servers, as these appear to be primary targets for TODDYCAT's sophisticated attack vectors.

Predicted CVEs (9) CORRELATION

How does prediction work?

Predicted CVEs are identified through automated correlation using multiple sources: vendor/product profiles historically targeted by the group (MITRE ATT&CK), attack chain patterns (KEV + TTPs), threat intelligence (MISP, STIX), and AI analysis. These CVEs have not been confirmed as exploited by this specific group, but have a high probability of being targets based on the actor's operational profile.

CVE-2021-26855 CRITICAL Microsoft Exchange Server 2016 Cumulative Update 19 medium 9.1 CVE-2021-26855 CRITICAL Microsoft Exchange Server 2016 Cumulative Update 19 predicted 9.1 CVE-2021-34473 CRITICAL Microsoft Exchange Server 2013 Cumulative Update 23 predicted 9.1 CVE-2023-21529 HIGH Microsoft Exchange Server 2019 Cumulative Update 12 predicted 8.8 CVE-2022-41040 HIGH Microsoft Exchange Server 2013 Cumulative Update 23 predicted 8.8 CVE-2020-0688 HIGH Microsoft Exchange Server 2013 predicted 8.8 CVE-2022-41080 HIGH Microsoft Exchange Server 2016 Cumulative Update 23 predicted 8.8 CVE-2022-41082 HIGH Microsoft Exchange Server 2013 Cumulative Update 23 predicted 8.0 CVE-2021-31207 MEDIUM Microsoft Exchange Server 2013 Cumulative Update 23 predicted 6.6