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OSINT - Locky Ransomware Domains – Followup Analysis Uncovers 130 New Indicators

Low
Published: Mon Apr 11 2016 (04/11/2016, 00:00:00 UTC)
Source: CIRCL
Vendor/Project: tlp
Product: white

Description

OSINT - Locky Ransomware Domains – Followup Analysis Uncovers 130 New Indicators

AI-Powered Analysis

AILast updated: 07/03/2025, 03:54:45 UTC

Technical Analysis

The provided information pertains to an OSINT (Open Source Intelligence) report focused on Locky ransomware-related domains. Locky ransomware is a well-known malware family that encrypts victims' files and demands ransom payments for decryption. This particular report is a follow-up analysis that uncovered 130 new indicators, specifically domains associated with Locky ransomware infrastructure. These domains are typically used for command and control (C2), distribution of the ransomware payload, or for ransom payment processing. The report originates from CIRCL (Computer Incident Response Center Luxembourg), a reputable source for cybersecurity intelligence. Although the report is dated April 2016 and lists the severity as low, it provides valuable insight into the infrastructure used by Locky ransomware operators, which can aid in detection and prevention efforts. The lack of affected versions or patch links suggests this is not a vulnerability but rather intelligence on malicious domains. No known exploits in the wild are indicated, and the threat level is moderate (3 out of an unspecified scale). The absence of specific technical details or indicators in the provided data limits the depth of analysis but confirms the focus on domain-based indicators related to Locky ransomware campaigns.

Potential Impact

For European organizations, the presence of Locky ransomware domains represents a persistent threat vector. If these domains remain active or are reused by threat actors, they can facilitate ransomware infections leading to data encryption, operational disruption, financial loss, and reputational damage. Locky ransomware historically targeted a wide range of sectors including healthcare, finance, and public administration, all critical in Europe. The impact is compounded by the potential for lateral movement within networks once infected, risking widespread data loss and downtime. Although the severity is marked low in this report, the broader Locky ransomware family has caused significant incidents globally, including in Europe. Organizations that fail to detect or block communications with these domains may be vulnerable to infection or reinfection. Additionally, the intelligence on these domains can help European CERTs and SOC teams improve their detection capabilities and incident response readiness.

Mitigation Recommendations

European organizations should integrate the newly identified Locky ransomware domains into their network security controls, including DNS filtering, firewall rules, and intrusion detection/prevention systems. Regularly updating threat intelligence feeds with such OSINT reports is critical. Endpoint protection solutions should be configured to detect and block Locky ransomware behaviors, including suspicious file encryption activities and known ransomware payload signatures. User awareness training should emphasize the risks of phishing emails, which are a common Locky infection vector. Network segmentation can limit ransomware spread if an infection occurs. Organizations should maintain robust, tested backups stored offline or in immutable storage to enable recovery without paying ransom. Collaboration with national CERTs and sharing of threat intelligence can enhance collective defense. Finally, monitoring for any resurgence or reuse of these domains in current campaigns is essential to maintain proactive defenses.

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Technical Details

Threat Level
3
Analysis
2
Original Timestamp
1460358659

Threat ID: 682acdbcbbaf20d303f0b3b5

Added to database: 5/19/2025, 6:20:44 AM

Last enriched: 7/3/2025, 3:54:45 AM

Last updated: 8/15/2025, 2:49:36 PM

Views: 15

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