Ransomware group operating the REvil/Sodinokibi Ransomware-as-a-Service, responsible for Kaseya supply chain attack affecting 1,500+ businesses. This profile is mapped to MITRE ATT&CK G0115 and covers attribution, tooling, targeting, and defensive recommendations based on observed campaigns.
Overview & Attribution
GOLD SOUTHFIELD (also tracked as Pinchy Spider) is a threat group attributed to Eastern Europe. The group primarily targets Global, all sectors (RaaS) for intelligence collection and operational objectives aligned with state interests.
This group is tracked as G0115 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 GOLD SOUTHFIELD include:
- REvil/Sodinokibi
- Cobalt Strike
Targeting & Operations
GOLD SOUTHFIELD operations focus on Global, all sectors (RaaS). 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 Global sector should treat GOLD SOUTHFIELD 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 GOLD SOUTHFIELD operations:
| Technique ID | Technique Name | Tactical Context |
|---|---|---|
| T1486 | T1486 | Observed in GOLD SOUTHFIELD campaigns |
| T1195.002 | T1195.002 | Observed in GOLD SOUTHFIELD campaigns |
| T1190 | T1190 | Observed in GOLD SOUTHFIELD campaigns |
| T1059.001 | T1059.001 | Observed in GOLD SOUTHFIELD campaigns |
Full ATT&CK mapping: https://attack.mitre.org/groups/G0115/
Notable Campaigns
This threat group has been active in operations targeting Global, all sectors (RaaS). Security researchers have documented campaigns involving REvil/Sodinokibi and other tools deployed against organizations in multiple countries. Attribution confidence varies by campaign, but consistent infrastructure and TTP overlap links activity to Eastern Europe-nexus operations.
Detection & Defense
Recommended defensive measures against GOLD SOUTHFIELD:
- Network monitoring: Detect C2 beaconing patterns associated with REvil/Sodinokibi and related implants
- Endpoint detection: Deploy behavioral rules for the ATT&CK techniques above, particularly T1486 and T1195.002
- 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 G0115 in MITRE ATT&CK
How Mjolnir Security Can Help
Defend Against GOLD SOUTHFIELD
Mjolnir Security provides tailored threat intelligence, detection engineering, and incident response services to help organizations defend against Eastern Europe-nexus threat actors.
Contact us: mjolnirsecurity.com
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