Financially motivated group stealing payment card data from hospitality and restaurant point-of-sale systems since 2008. This profile is mapped to MITRE ATT&CK G0053 and covers attribution, tooling, targeting, and defensive recommendations based on observed campaigns.
Overview & Attribution
FIN5 (also tracked as None publicly documented) is a threat group attributed to Unknown. The group primarily targets Restaurants, hospitality, casinos for intelligence collection and operational objectives aligned with state interests.
This group is tracked as G0053 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 FIN5 include:
- RawPOS
- FlawedAmmyy
- ServHelper
Targeting & Operations
FIN5 operations focus on Restaurants, hospitality, casinos. 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 Restaurants sector should treat FIN5 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 FIN5 operations:
| Technique ID | Technique Name | Tactical Context |
|---|---|---|
| T1078 | T1078 | Observed in FIN5 campaigns |
| T1021.001 | T1021.001 | Observed in FIN5 campaigns |
| T1059.001 | T1059.001 | Observed in FIN5 campaigns |
| T1005 | T1005 | Observed in FIN5 campaigns |
Full ATT&CK mapping: https://attack.mitre.org/groups/G0053/
Notable Campaigns
This threat group has been active in operations targeting Restaurants, hospitality, casinos. Security researchers have documented campaigns involving RawPOS and other tools deployed against organizations in multiple countries. Attribution confidence varies by campaign, but consistent infrastructure and TTP overlap links activity to Unknown-nexus operations.
Detection & Defense
Recommended defensive measures against FIN5:
- Network monitoring: Detect C2 beaconing patterns associated with RawPOS and related implants
- Endpoint detection: Deploy behavioral rules for the ATT&CK techniques above, particularly T1078 and T1021.001
- 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 G0053 in MITRE ATT&CK
How Mjolnir Security Can Help
Defend Against FIN5
Mjolnir Security provides tailored threat intelligence, detection engineering, and incident response services to help organizations defend against Unknown-nexus threat actors.
Contact us: mjolnirsecurity.com
Stay ahead of emerging threats. Get notified when we publish new intelligence reports and advisories.
Subscribe to Alerts