Threats Tagged 'metamorfo'

An investigation beginning with a single RedLine Stealer C2 server from VMRay UniqueSignal evolved into uncovering a targeted Business Email Compromise campaign against South Korean maritime infrastructure. The analysis started with IP 194.156.79.122 on port 55615, leveraging fingerprinting techniques through FOFA and VirusTotal to identify additional C2 infrastructure. Pivoting through communicating files revealed spear-phishing emails targeting Kangrim Heavy Industries, a major South Korean marine boiler manufacturer. The campaign delivered Formbook malware through impersonated maritime supply chain companies. Further infrastructure analysis identified seven fraudulent domains hosted on TheHost LLC infrastructure, utilizing similar naming patterns and TLS certificates. The attack demonstrates sophisticated BEC tactics combining malware delivery with social engineering, mimicking legitimate business correspondence within the maritime shipping sector.

MediumMalwareSouth Korea#spear-phishing#south korean victims#business email compromise

This report details the discovery and analysis of a Horabot malware campaign targeting primarily Mexican users. The attack chain begins with a fake CAPTCHA page leading to multiple stages of obfuscated scripts, ultimately delivering an AutoIT loader and a Delphi-based banking Trojan. The malware employs sophisticated encryption techniques, anti-VM checks, and a custom protocol for C2 communication. It also includes a spreader component written in PowerShell that harvests and exfiltrates email addresses to distribute phishing emails. The analysis reveals Brazilian Portuguese comments in the code, suggesting the threat actor's origin. The report provides detection opportunities including YARA rules and hunting queries to identify this threat.

MediumMalwareMexicoBrazilUnited States+2#ponteiro#delphi#brazil

The Water Saci campaign is a sophisticated malware operation primarily targeting Brazilian banking and cryptocurrency platforms via WhatsApp. It employs multi-format malware delivery using various scripting languages, including a shift from PowerShell to Python, likely enhanced by AI tools to evade detection and complicate analysis. The malware features aggressive anti-sandbox techniques, extensive backdoor capabilities, and persistence mechanisms. Although currently focused on Brazil, the use of WhatsApp as a propagation vector and targeting financial applications poses a potential risk to European organizations with ties to Brazilian markets or users. The campaign’s complexity and AI-enhanced development pipeline indicate a medium severity threat with significant evasion and persistence capabilities. Defenders should prioritize monitoring WhatsApp-based phishing attempts, scrutinize multi-format file attachments, and implement advanced behavioral detection to mitigate risks. Countries with strong economic or diaspora links to Brazil and high WhatsApp usage are more likely to be affected.

MediumMalwarePortugalSpainItaly+4#backdoor#python#banking trojan