Full Report
Volatile Cedar, a cybercriminal group affiliated with the Hezbollah Cyber Unit, has resurfaced after disappearing for almost 6 years.
Analysis Summary
# Threat Actor: Volatile Cedar
## Attribution & Identity
* **Attribution:** Cybercriminal group affiliated with the Hezbollah Cyber Unit.
* **Aliases:** Volatile Cedar.
* **Re-emergence:** Resurfaced after approximately six years of apparent inactivity.
## Activity Summary
Volatile Cedar was discovered active following suspicious activity targeting Oracle and Atlassian servers. The recent activities involved reconnaissance campaigns aimed at understanding the strategies and behaviors of specified adversaries. The group employs operational security measures, such as widening their geographical attack surface and shifting attack vectors, suggesting they may have remained active but heavily obfuscated during their period of dormancy.
## Tactics, Techniques & Procedures
* **Initial Access:** Exploited known vulnerabilities in unpatched Atlassian and Oracle servers, specifically:
* CVE-2012-3152
* CVE-2019-11581
* CVE-2019-3396
* **Defense Evasion:**
* Shifting attack surfaces (e.g., from primary hosts to public servers).
* Using common web shell utilities instead of more detectable tools.
* Implementing memory usage monitoring within their custom RAT to avoid suspicious processing allocations.
* **Execution/Persistence:** Deployed a custom remote access tool named "Explosive RAT," an update to their prior "Explosive" trojan. This tool is usually deployed via a compromised open-source JSP file browser.
## Targeting
* **Sectors:** Telecommunication companies.
* **Geography:** United States, Egypt, Jordan, United Kingdom, Saudi Arabia, Europe, UAE, and the Palestinian Authority.
* **Victims:** Organizations hosting Oracle and Atlassian servers; Intelligence gathered included client call records and other private data.
## Tools & Infrastructure
* **Malware Families Used:**
* Explosive RAT (Custom Remote Access Tool)
* Explosive (Prior Trojan version)
* **Infrastructure:** Deployment often involves compromised open-source JSP file browsers for deploying the RAT. (No specific C2 domains or IPs were defanged in the text provided.)
## Implications
Volatile Cedar's activities showcase a concerning progression in the capabilities attributed to Hezbollah-linked activity. They are not only evolving their operational tradecraft but are now developing specialized, custom proprietary tools ("Explosive RAT") designed explicitly for sensitive data theft and corporate espionage, indicating increased sophistication and intent.
## Mitigations
* Immediately patch all Atlassian and Oracle servers against vulnerabilities CVE-2012-3152, CVE-2019-11581, and CVE-2019-3396.
* Audit systems for the presence of web shell utilities and proactively search for unknown, custom RATs like Explosive RAT.
* Implement monitoring for anomalous memory allocation patterns that might signal the presence of evasion techniques used by custom malware.
* Review security posture for public-facing services, as the actor shifts attack surfaces to evade detection.