Chinese group using stolen code signing certificates to attack Indian government and commercial organizations. This profile is mapped to MITRE ATT&CK G0039 and covers attribution, tooling, targeting, and defensive recommendations based on observed campaigns.
Overview & Attribution
Suckfly (also tracked as None publicly documented) is a threat group attributed to China. The group primarily targets Indian government, technology for intelligence collection and operational objectives aligned with state interests.
This group is tracked as G0039 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 Suckfly include:
- Nidiran
- custom signed malware
Targeting & Operations
Suckfly operations focus on Indian government, technology. 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 Indian government sector should treat Suckfly 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 Suckfly operations:
| Technique ID | Technique Name | Tactical Context |
|---|---|---|
| T1553.002 | T1553.002 | Observed in Suckfly campaigns |
| T1566.001 | T1566.001 | Observed in Suckfly campaigns |
| T1059.001 | T1059.001 | Observed in Suckfly campaigns |
| T1071.001 | T1071.001 | Observed in Suckfly campaigns |
Full ATT&CK mapping: https://attack.mitre.org/groups/G0039/
Notable Campaigns
This threat group has been active in operations targeting Indian government, technology. Security researchers have documented campaigns involving Nidiran and other tools deployed against organizations in multiple countries. Attribution confidence varies by campaign, but consistent infrastructure and TTP overlap links activity to China-nexus operations.
Detection & Defense
Recommended defensive measures against Suckfly:
- Network monitoring: Detect C2 beaconing patterns associated with Nidiran and related implants
- Endpoint detection: Deploy behavioral rules for the ATT&CK techniques above, particularly T1553.002 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 G0039 in MITRE ATT&CK
How Mjolnir Security Can Help
Defend Against Suckfly
Mjolnir Security provides tailored threat intelligence, detection engineering, and incident response services to help organizations defend against China-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