Financially motivated group targeting fintech and cryptocurrency companies with JavaScript-based malware and social engineering. This profile is mapped to MITRE ATT&CK G0120 and covers attribution, tooling, targeting, and defensive recommendations based on observed campaigns.
Overview & Attribution
Evilnum (also tracked as None publicly documented) is a threat group attributed to Unknown. The group primarily targets Financial, fintech, cryptocurrency for intelligence collection and operational objectives aligned with state interests.
This group is tracked as G0120 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 Evilnum include:
- Evilnum JS
- TEARDROP
- MoreEggs
Targeting & Operations
Evilnum operations focus on Financial, fintech, cryptocurrency. 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 Financial sector should treat Evilnum 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 Evilnum operations:
| Technique ID | Technique Name | Tactical Context |
|---|---|---|
| T1566.001 | T1566.001 | Observed in Evilnum campaigns |
| T1059.007 | T1059.007 | Observed in Evilnum campaigns |
| T1005 | T1005 | Observed in Evilnum campaigns |
| T1071.001 | T1071.001 | Observed in Evilnum campaigns |
Full ATT&CK mapping: https://attack.mitre.org/groups/G0120/
Notable Campaigns
This threat group has been active in operations targeting Financial, fintech, cryptocurrency. Security researchers have documented campaigns involving Evilnum JS 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 Evilnum:
- Network monitoring: Detect C2 beaconing patterns associated with Evilnum JS and related implants
- Endpoint detection: Deploy behavioral rules for the ATT&CK techniques above, particularly T1566.001 and T1059.007
- 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 G0120 in MITRE ATT&CK
How Mjolnir Security Can Help
Defend Against Evilnum
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