SHINYHUNTERS

RANSOMWARE

SHINYHUNTERS is a ransomware group that primarily targets large enterprises and organizations within the technology and finance sectors, focusing on exploiting vulnerabilities in widely used enterprise software such as Cisco Unified Communications Manager and Oracle E-Business Suite. The group's initial access method often involves sophisticated social engineering techniques like vishing to obtain unsecured credentials or application access tokens, which are then leveraged to gain unauthorized access to targeted networks. Once inside, SHINYHUNTERS employs a double extortion tactic, exfiltrating sensitive data before deploying ransomware to encrypt critical systems and demanding hefty ransoms for decryption keys. This group stands out due to its strategic use of highly critical vulnerabilities and advanced social engineering tactics that enable deep network infiltration.

SHINYHUNTERS exploits primarily involve remote code execution (RCE) and authentication bypass vulnerabilities, as evidenced by the confirmed CVEs CVE-2025-61882 and CVE-2026-20045. While their malware remains undisclosed, the group's reliance on social engineering techniques such as vishing suggests a high level of operational sophistication. Defenders should prioritize securing private keys and application access tokens to mitigate unauthorized access risks. Additionally, implementing robust network segmentation and monitoring for data exfiltration activities over web services can help detect and prevent SHINYHUNTERS' operations early in the attack lifecycle.

Confirmed CVEs (2)

Exploited by this group as confirmed by threat intelligence sources.

CVE-2025-61882 CRITICAL Oracle Corporation Oracle Concurrent Processing 9.8 CVE-2026-20045 CRITICAL Cisco Unified Communications Manager 9.8

Predicted CVEs (5) 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-2022-21587 CRITICAL Oracle Corporation Web Applications Desktop Integrator predicted 9.8 CVE-2026-35273 CRITICAL Oracle Corporation PeopleSoft Enterprise PeopleTools predicted 9.8 CVE-2026-35273 CRITICAL Oracle Corporation PeopleSoft Enterprise PeopleTools high 9.8 CVE-2025-61882 CRITICAL Oracle Corporation Oracle Concurrent Processing predicted 9.8 CVE-2025-61884 HIGH Oracle Corporation Oracle Configurator predicted 7.5

ATT&CK Techniques (7)

T1552.004 Unsecured Credentials: Private Keys Initial Access T1566.003 Phishing: Spearphishing Voice (Vishing) Initial Access T1550.001 Use Alternate Authentication Material: Application Access Token Defense Evasion T1213 Data from Information Repositories Collection T1567 Exfiltration Over Web Service Exfiltration T1486 Data Encrypted for Impact Impact T1598.002 Phishing for Information: Spearphishing Attachment Reconnaissance