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ShadowSyndicate, also written Shadow Syndicate or shadow_syndicate, is a financially motivated cybercrime activity cluster active since at least July 2022 and publicly identified in 2023. It is associated with infrastructure supporting multiple ransomware operations. High-confidence campaign links include Quantum ransomware activity in September 2022, Nokoyawa activity in October and November 2022 and March 2023, and ALPHV/BlackCat activity in February 2023. The cluster has also been identified as a user of RansomHub. A distinguishing characteristic is the reuse of OpenSSH server fingerprints and access keys across a distributed server network. Infrastructure expansion, additional SSH fingerprints, and movement of servers between fingerprint clusters have enabled continued tracking. Its servers host command-and-control infrastructure for offensive and post-exploitation tools, including Cobalt Strike, Metasploit, Sliver, Havoc, Mythic, and Brute Ratel. ShadowSyndicate-linked infrastructure has remained involved in vulnerability scanning and malicious payload distribution and uses multiple abuse-tolerant and bulletproof hosting providers. ShadowSyndicate's precise organizational role is not established. Ransomware-affiliate activity and shared infrastructure do not establish that it directly controls every associated intrusion or malware campaign. Likewise, infrastructure relationships with hosting providers and other threat groups do not establish its country of origin, state sponsorship, or a definitive victim geography or industry profile.
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.
11 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
25 malware families attributed to this actor across reporting.
20 additional families tracked in Mallory.
1 CVE this actor has used in observed campaigns. 1 of them exploited in the wild.
278 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.
Affiliate cluster operating across multiple ransomware families, including Play, BlackCat, and Cl0p.
Mentioned as one of several groups linked via Cobalt Strike watermark analysis on BitLaunch infrastructure.
A cybercrime activity cluster that has expanded and maintained coordinated SSH-based infrastructure (reused access keys, consistent OpenSSH usage) and operates servers used as C2 nodes for open-source post-exploitation tools and red team frameworks; assessed as potentially functioning as an Initial Access Broker and/or a bulletproof hosting provider.
Cybercrime activity cluster operating shared/reused infrastructure (SSH-keyed server clusters) that supports multiple downstream threat clusters; associated with a broad post-exploitation toolkit and infrastructure handoffs between SSH clusters.
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.