Cicada3301 Ransomware Claims Attack on French Peugeot Dealership

Category	Details
Threat Actors	Cicada3301 (Ransomware group operating under Ransomware-as-a-Service model)
Campaign Overview	Breach of Concession Peugeot; theft of 35GB of sensitive data including invoices, passports, and communications
Target Regions/Victims	French automotive dealership associated with Peugeot
Methodology	- Ransomware attack targeting dealership’s systems - Use of RaaS model by affiliates
Product Targeted	Concession Peugeot systems (Windows and Linux/ESXi platforms)
Malware Reference	Cicada3301 ransomware
Tools Used	Written in Rust, leveraging ChaCha20 encryption, cross-platform ransomware
Vulnerabilities Exploited	Weak security protocols in targeted dealership systems
TTPs	- Cross-platform targeting (Windows and Linux/ESXi) - File encryption using ChaCha20 - Data exfiltration and public leaks
Attribution	Cicada3301 ransomware group with similarities to ALPHV/BlackCat
Recommendations	- Strengthen dealership and brand-wide cybersecurity measures - Monitor subdomain security - Regular system patching and cross-platform security audits - Establish incident response plans for high-value data breaches
Source	Hackread

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