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BHMAC

Ransomware attack by Arcusmedia · Disclosed June 4, 2024 · 🇭🇷 Croatia

bhmac.org

Date Disclosed
Jun 4, 2024
2024
Threat Group
Arcusmedia
113 total victims
Country
🇭🇷 Croatia
Industry
Business Services

ThreatAI Analysis

Compiled from this incident record and the threat intelligence profile for Arcusmedia. Figures and technique mappings are quoted from the source data, not inferred.

About the Arcusmedia group

Arcus Media is a ransomware-as-a-service group that emerged in May 2024, employing double extortion with ChaCha20 + RSA-2048 encryption and recruiting affiliates via a referral-based vetting process, claiming 50+ victims across manufacturing, healthcare, retail, and business services globally. Arcusmedia has listed 109 victims since May 2024.

Incident Analysis

BHMAC was targeted by Arcusmedia ransomware, one of the most active ransomware groups in our database with 113 confirmed victims globally. The attack was disclosed on June 4, 2024, when BHMAC appeared on the group's dark web leak site.

BHMAC is based in Croatia , operating in the Business Services sector. Croatia ranks #51 globally for ransomware attacks, with 28 victims in our database.

Sector context: Business services firms often have access to multiple client environments, making them high-value pivot points for ransomware operators seeking to maximise impact across multiple victim organisations.

Arcusmedia typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats — paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Sep 20, 2026 20:00 UTC.

Frequently Asked Questions

Was BHMAC attacked by ransomware?

Yes. BHMAC was listed as a victim of the Arcusmedia ransomware group on June 4, 2024. The organisation is based in Croatia and operates in the Business Services sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked BHMAC?

BHMAC was attacked by Arcusmedia ransomware. Arcusmedia is one of the most active ransomware groups, having claimed 113 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the BHMAC ransomware attack occur?

The ransomware attack on BHMAC was disclosed on June 4, 2024. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the BHMAC ransomware attack?

The specific data stolen from BHMAC has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Business Services organisation, BHMAC likely held sensitive business data, client information, and operational records.

How can organisations protect against Arcusmedia attacks?

To defend against Arcusmedia and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.