Loading threat actor…
Silent Ransom Group (SRG), also known as Luna Moth, Chatty Spider, Storm-0252, and UNC3753, is a Russian-linked financially motivated extortion group. The group has targeted organizations in the United States and Germany, with a notable concentration on law firms and legal-sector victims. Its operations involve obtaining data from individual or peripheral corporate devices, including employee devices, then using stolen documents as leverage in ransom negotiations. SRG has operated a leak site and has published victim data when negotiations fail. It has also applied pressure by contacting victim executives, employees, and major clients. Reporting on its intrusions indicates a focus on accessing endpoint-held data rather than a demonstrated, durable capability to compromise domain-control or Active Directory infrastructure. Publicly attributed activity includes extortion and data publication affecting U.S. law firms such as Greenberg Traurig, Holland & Knight, and Katten Muchin Rosenman.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
39 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
7 malware families attributed to this actor across reporting.
2 additional families tracked in Mallory.
388 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Conducting attacks against law firms and publishing or threatening to publish victim data via a leak site.
An extortion-focused threat group targeting law firms. In this incident it allegedly compromised individual employee devices, exfiltrated sensitive client and employee information, demanded payment for deletion and confidentiality, and published the data after negotiation deadlines expired.
Conducted a ransomware attack against a US-based organization identified only as H… C….
Reportedly conducted a ransomware attack against a redacted organization in Germany.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.