Emerging Ransomware Threats in Latin America: Advanced Malware Analysis

In early 2026, Latin America has experienced a significant escalation in cyber threats, particularly from sophisticated ransomware groups. This briefing provides an in-depth analysis of emerging malware families, reverse engineering insights, and command-and-control (C2) infrastructure trends affecting the region.

Surge in Ransomware Activity

Between January and December 2025, Latin America recorded over 450 ransomware-related breach events, marking a 78% increase from the previous year. Brazil emerged as the most targeted country, underscoring the region's heightened vulnerability. (industrialcyber.co)

Novel Malware Families

A notable development is the emergence of VENON, a Rust-based banking trojan targeting 33 Brazilian financial institutions. This shift from traditional Delphi-based malware signifies a strategic move by threat actors to exploit Rust's performance and security features. VENON employs techniques such as banking overlay logic, active window monitoring, and shortcut hijacking, resembling other Latin American banking trojans. It utilizes DLL side-loading and social engineering tactics, including the "ClickFix" method, to distribute malicious payloads via PowerShell scripts. Advanced evasion techniques like anti-sandboxing and AMSI bypass are also incorporated, with the malware establishing a WebSocket connection to a C2 server. (cyware.com)

Integration of Generative AI in Malware Development

The integration of generative AI into cybercrime operations has been observed, with financially motivated groups incorporating AI into their development pipelines. For instance, the discovery of the Slopoly malware during an Interlock ransomware attack, attributed to the Hive0163 group, revealed a PowerShell-based backdoor featuring structured logging and variable naming conventions indicative of AI-assisted coding. This approach streamlines the malware's persistence mechanism, enhancing its effectiveness and stealth. (cyware.com)

Advanced Evasion Techniques

The region has also seen the deployment of sophisticated evasion techniques, including fileless malware and rootkits. Fileless malware, which operates without traditional files, poses significant detection challenges. Machine learning-based detection methods have been proposed to address this threat, focusing on identifying malicious activities directly in memory. Additionally, rootkits targeting the Linux kernel have been identified, exploiting vulnerabilities to achieve root-level privilege escalation and bypass container isolation. (pmc.ncbi.nlm.nih.gov)

Command-and-Control Infrastructure Analysis

Ransomware groups are increasingly adopting sophisticated C2 infrastructures to enhance operational resilience. Techniques such as hard-coded C2 IP addresses, domain generation algorithms (DGAs), and leveraging existing botnets are employed to maintain control over compromised systems. These methods complicate detection and mitigation efforts, as they enable rapid adaptation and evasion of traditional security measures. (link.springer.com)

Conclusion

The cyber threat landscape in Latin America is evolving rapidly, with ransomware groups deploying advanced malware families, integrating AI into their operations, and utilizing sophisticated evasion and C2 techniques. Organizations in the region must enhance their cybersecurity posture by adopting proactive defense strategies, investing in advanced detection technologies, and fostering collaboration to effectively counter these emerging threats.