Loading threat actor…
Quantum was a ransomware and extortion operation active in 2022 and widely assessed as part of the post-Conti cybercrime ecosystem. Reporting consistently links Quantum to former Conti members, with multiple assessments stating that after Conti’s 2022 fragmentation, members rebranded into subgroups including Zeon, Black Basta, and Quantum. Quantum is further described as having quickly rebranded to Royal, which later rebranded again to BlackSuit in 2024. Quantum conducted double-extortion intrusions, combining data theft with file encryption and subsequent leak-site pressure. Confirmed victim reporting includes the 2022 attack on Medlab Pathology in Australia, where data was exfiltrated and later published, and the targeting of the Dominican Republic’s Ministry of Agriculture in 2022. Additional reporting places Quantum activity against organizations in the United States and Canada, including manufacturing and legal-sector victims, and indicates at least one financial-sector victim in the United States. The operation was associated with common ransomware intrusion tradecraft including phishing-based initial access, use of malicious ISO attachments, exfiltration, and post-compromise deployment of ransomware. Quantum was also linked through ecosystem reporting to affiliates and initial access brokers connected to Conti-era tooling and operators. Separate reporting notes that UAC-0098 acted as an initial access broker for Quantum and Conti. Infrastructure and tooling overlap has also been reported between Quantum and Play, including partially shared infrastructure and related Cobalt Strike beacon characteristics. Quantum is best understood as a financially motivated Russian-linked ransomware brand within the broader Conti lineage rather than a long-lived standalone cluster. Known aliases include Quantum Group and Quantum ransomware. Its later lineage is commonly tracked through Royal and BlackSuit.
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.
19 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Named as one of multiple ransomware groups operating data leak sites and listing fresh victims.
Named as a Conti successor subgroup that rebranded first to Royal and later to BlackSuit.
Named as one of the ransomware groups that former Conti members reportedly splintered into after Conti shut down.
A subgroup formed from former Conti members that quickly rebranded to Royal and later to BlackSuit.
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.