MuddyWater / Mercury (also known as Mercury, Static Kitten, Seedworm, TEMP.Zagros, Mango Sandstorm) is a state-sponsored advanced persistent threat group attributed to Iran (MOIS), active since 2017. The group primarily targets Middle East governments, telecom, energy, defense sectors. It is tracked by MITRE ATT&CK as G0069.
Overview & Attribution
Iranian MOIS-subordinate APT conducting espionage across the Middle East using custom C2 frameworks, heavy PowerShell usage, and living-off-the-land techniques.
MuddyWater has been active since 2017, attributed to Iran (MOIS). The group is known for targeting Middle East governments, telecom, energy, defense using a combination of custom malware, living-off-the-land techniques, and sophisticated social engineering.
- Attribution: Iran (MOIS)
- Active since: 2017
- Primary targets: Middle East governments, telecom, energy, defense
- Also known as: Mercury, Static Kitten, Seedworm, TEMP.Zagros, Mango Sandstorm
Arsenal & Tools
MuddyWater employs a diverse arsenal of custom and shared tooling:
- POWERSTATS: Custom/shared tooling used in operations
- MuddyC3: Custom/shared tooling used in operations
- PhonyC2: Custom/shared tooling used in operations
- SimpleHarm: Custom/shared tooling used in operations
- MuddyRot: Custom/shared tooling used in operations
Targeting & Operations
The group focuses on Middle East governments, telecom, energy, defense sectors, with operations spanning multiple geographic regions. Their campaigns typically involve carefully crafted spearphishing, strategic watering holes, and exploitation of public-facing applications.
MuddyWater is characterized by persistent, long-term access operations. Once inside a target network, the group establishes multiple redundant persistence mechanisms and moves laterally to high-value systems before beginning data exfiltration.
MITRE ATT&CK Mapping
| Tactic | Technique | Usage |
|---|---|---|
| Initial Access | T1566.001 Phishing Attachment | Macro-laden documents |
| Execution | T1059.001 PowerShell | POWERSTATS backdoor |
| Persistence | T1053.005 Scheduled Task | Scheduled task persistence |
| Defense Evasion | T1140 Deobfuscate/Decode | Multi-layer obfuscation |
| Lateral Movement | T1021.001 Remote Desktop | RDP lateral movement |
| C2 | T1071.001 Web Protocols | Custom HTTP C2 |
Notable Campaigns
MuddyWater has been linked to multiple significant campaigns targeting Middle East governments, telecom, energy, defense organizations. The group continuously evolves its tooling and infrastructure to evade detection while maintaining persistent access to compromised networks.
- Long-term espionage: Multi-year intrusions into government and defense networks
- Supply chain targeting: Compromise of technology providers and managed service providers
- Zero-day exploitation: Use of previously unknown vulnerabilities for initial access
Detection & Defense
- Threat intelligence integration: Monitor for known MuddyWater IOCs and TTPs in SIEM/EDR platforms
- Network monitoring: Detect C2 patterns associated with POWERSTATS and related tooling
- Email security: Implement advanced phishing detection for spearphishing campaigns
- Endpoint detection: Deploy behavioral detection rules for known MuddyWater TTPs
- Patch management: Prioritize patching of vulnerabilities known to be exploited by this group
- Lateral movement detection: Monitor for suspicious authentication patterns and admin tool usage
Defend Against MuddyWater
Mjolnir Security provides specialized capabilities to detect and respond to MuddyWater operations.
- APT Threat Hunting Proactive hunting for MuddyWater TTPs, tooling artifacts, and infrastructure indicators within your environment.
- Threat Intelligence Continuous monitoring of MuddyWater campaigns and infrastructure changes with actionable intelligence for your defense team.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
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