Ransomware victim disclosure

schuff.com

Claimed by blackbasta · listed 1 year ago

800 GB

Data size

17m

Age

since listed · data leaked

Status timeline

Listed
Jan 11, 2025
Data leaked

At a glance

Group: blackbasta
Status: Data leaked
Country: United States
Sector: Business Services
Listed on leak site: Jan 11, 2025
Data size: 800 GB

About the victim

AI dossier — public-source company profile

Schuff Steel Company is one of the largest structural steel fabrication and erection companies in the United States, founded in 1976. The company provides comprehensive services for commercial and industrial construction projects including high-rise buildings, sports arenas, hospitals, and similar infrastructure.

Industry: Structural Steel Fabrication & Erection
Address: 3003 N. Central Avenue, Suite 1500, Phoenix, AZ 85012, United States
Founded: 1976

Attack summary

Severity: high — Confirmed exfiltration of 800 GB including financial data, employee PII, and sensitive business/engineering documents from a major infrastructure company. Data is published (disclosed_status = data_published). No operational disruption claimed, but scale and sensitivity of data inventory warrants 'high' rather than 'critical'.

BlackBasta claims to have exfiltrated approximately 800 GB of data from Schuff Steel. The group alleges access to financial records, employee personal data and documents, confidential NDAs, and engineering/project drawings.

high

Data the group says was taken

AI dossier — extracted from the leak post

Financial data
Employee personal data and documents
Forms and HR records
Confidential agreements and NDAs
Engineering drawings and project specifications

What the group claims

Schuff Steel Company is one of the largest structural steel fabrication and erection companies in the United States, founded in 1976 by Dave Schuff and his son, Scott. The company specializes in providing comprehensive services for commercial and industrial construction projects, including high-rise buildings, sports arenas, hospitals, and more.SITE: www.schuff.comADDRESS: 3003 N. Central Avenue, Suite 1500 Phoenix, AZ 85012 United StatesTEL#: (602) 252-7787ALL DATA SIZE: ≈800gb 1. Financial data 2. Personal employees data, docs, forms… 3. Confidential, NDA’s 4. Engeneering, Projects, Drawings… & etc…

Sources

Victim siteschuff.com
Leak posthttp://stniiomyjliimcgkvdszvgen3eaaoz55hreqqx6o77yvmpwt7gklffqd.onion/?id=schuff.com

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About blackbasta

Black Basta is a financially motivated ransomware group that emerged in April 2022 and has rapidly established itself as a significant threat actor, compromising over 500 organizations globally within its first two years of operation. The group is suspected to have ties to Russia-based cybercriminal networks and operates as a Ransomware-as-a-Service (RaaS) model, recruiting affiliates to conduct attacks while the core group maintains the ransomware infrastructure and negotiates with victims. Black Basta primarily gains initial access through phishing campaigns, exploitation of unpatched vulnerabilities, and compromised Remote Desktop Protocol (RDP) credentials, then deploys custom tools and living-off-the-land techniques to move laterally through networks before deploying their ransomware payload that uses ChaCha20 encryption. The group employs double extortion tactics, stealing sensitive data before encryption and threatening to publish it on their leak site if ransom demands are not met. Notable campaigns include attacks on major manufacturing companies, healthcare organizations, and critical infrastructure entities primarily across the United States, United Kingdom, Germany, Canada, and Italy, with the group showing particular focus on business services, manufacturing, technology, agriculture and food production, and transportation/logistics sectors. As of 2024, Black Basta remains active and continues to evolve its tactics, techniques, and procedures while maintaining a steady pace of victim recruitment and ransom collection operations. The group has been linked to 523 public disclosures across our corpus. First observed on a leak site on April 26, 2022; most recent post January 11, 2025. The operation is currently inactive.

Timeline of this disclosure

January 11, 2025schuff.com listed by blackbastaon the group's public leak site

Data size: 800 GB

Other recent disclosures by blackbasta

blackbasta has been linked to 523 public victims on Darkfield. A sample of the most recent: