Iranian group targeting aerospace and energy sectors globally, linked to destructive attacks using Shamoon wiper and password spraying campaigns. This profile is mapped to MITRE ATT&CK G0064 and covers attribution, tooling, targeting, and defensive recommendations based on observed campaigns.
Overview & Attribution
APT33 (also tracked as Elfin, Peach Sandstorm, HOLMIUM) is a threat group attributed to Iran. The group primarily targets Aviation, energy, petrochemical, defense for intelligence collection and operational objectives aligned with state interests.
This group is tracked as G0064 in the MITRE ATT&CK framework. All techniques referenced in this report are mapped to ATT&CK for consistent threat modeling and detection engineering.
Arsenal & Tools
Known tools and malware associated with APT33 include:
- Shamoon
- DROPSHOT
- TURNEDUP
- NANOCORE
Targeting & Operations
APT33 operations focus on Aviation, energy, petrochemical, defense. The group typically gains initial access through spear-phishing, exploitation of public-facing applications, or strategic web compromises before deploying custom implants for persistent access and data exfiltration.
Organizations in the Aviation sector should treat APT33 as a relevant threat and validate their detection coverage against the MITRE ATT&CK techniques listed below.
MITRE ATT&CK Mapping
Key techniques observed in APT33 operations:
| Technique ID | Technique Name | Tactical Context |
|---|---|---|
| T1110.003 | T1110.003 | Observed in APT33 campaigns |
| T1566.001 | T1566.001 | Observed in APT33 campaigns |
| T1059.001 | T1059.001 | Observed in APT33 campaigns |
| T1486 | T1486 | Observed in APT33 campaigns |
Full ATT&CK mapping: https://attack.mitre.org/groups/G0064/
Notable Campaigns
This threat group has been active in operations targeting Aviation, energy, petrochemical, defense. Security researchers have documented campaigns involving Shamoon and other tools deployed against organizations in multiple countries. Attribution confidence varies by campaign, but consistent infrastructure and TTP overlap links activity to Iran-nexus operations.
Detection & Defense
Recommended defensive measures against APT33:
- Network monitoring: Detect C2 beaconing patterns associated with Shamoon and related implants
- Endpoint detection: Deploy behavioral rules for the ATT&CK techniques above, particularly T1110.003 and T1566.001
- Email security: Implement robust phishing defenses including URL sandboxing and attachment detonation
- Patch management: Prioritize patching of internet-facing applications exploited by this group
- Threat hunting: Proactively hunt for IOCs and behavioral indicators mapped to G0064 in MITRE ATT&CK
How Mjolnir Security Can Help
Defend Against APT33
Mjolnir Security provides tailored threat intelligence, detection engineering, and incident response services to help organizations defend against Iran-nexus threat actors.
Contact us: mjolnirsecurity.com
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