Gulfeagle Supply Ransomware Incident - CTI Report (2021)
Resumen del Informe
Prior to May 11, 2021, the client Gulfeagle Supply was operating a software delivery and support service. On that date, they were attacked by a Ransomware group associated with xinglocker malware family.
Hallazgos Principales
The incident involved both initial infection and subsequent data exfiltration:
- Initial Infection (May 10, 2021): Client downloaded malicious software from a compromised source. The malware encrypted sensitive client files.
- Data Exfiltration (May 11, 2021): After encryption, the attacker exfiltrated over 50MB of data via HTTP to an external IP address.
Actores Relacionados
The group was identified as xinglocker, a ransomware family known for using XSS-based payloads and aggressive data theft.
Indicadores de Compromiso (IOCs)
| Tipo | Valor | Contexto/URL |
|---|---|---|
| Malicious URL | https://xinglocker.io | Primary delivery channel for the malware. |
| Malicious Payload (XSS) | xgxc5d21w3y4z6a8b9c0d1e2f | XSS payload embedded in client applications. |
Recomendaciones
- Block Malicious URLs: Block https://xinglocker.io at the firewall or DNS level to prevent delivery of malware.
- Apply Patching: Ensure all client applications are updated with security patches that include XSS protection and input validation fixes.
- Monitor Exfiltration Logs: Alert on unusual HTTP traffic patterns (large data transfers to external IPs) which could indicate successful exfiltration post-encryption.
Conclusion
The Gulfeagle Supply incident demonstrates the severity of Ransomware attacks involving XSS-based delivery. Immediate blocking of known malicious URLs and application patching are critical defense controls.