Sinar Mas Agribusiness and Food Data Breach

ShadowByt3$, an emerging ransomware group, listed Sinar Mas Agribusiness and Food (Golden Agri-Resources) on its dark web portal on August 25, 2026. This listing was identified via SOCRadar Dark Web Monitoring. Sinar Mas Agribusiness and Food is a significant palm oil and agribusiness conglomerate in Southeast Asia, with extensive operations in plantation, processing, distribution, and a broad IT footprint across Indonesia. The company’s scale and operational complexity make it a potentially attractive target for cybercriminals seeking to disrupt operations or extract value. ShadowByt3$ has demonstrated activity over the preceding 60 days, claiming three prior victims in the United Kingdom and Indonesia. These victims were in the Education, Technology, and Agriculture sectors, including Nottingham Trent University and A-Plus Software Limited. The listing of Sinar Mas Agribusiness and Food represents an expansion of the group’s targeting scope to a major regional industrial entity, potentially indicating an increased ambition or a shift in strategic targeting. This incident aligns with the group’s previous focus on the agriculture sector in Indonesia.

SOCRadar’s analysis identified 26 records related to the domain smart-tbk[.]com through a stealer-log query. These records include 10 employee credentials associated with the victim’s infrastructure, specifically under the @smart-tbk[.]com domain. The compromised endpoints targeted include VPN and corporate portal access (connect.sinarmas-agri[.]com), Lotus Notes for workflow and document management, a database/sysadmin interface, and an HR/employee information system. This indicates access across four distinct types of internal platforms. The data’s freshness window spans from December 13, 2024, to August 13, 2026, covering over 20 months without apparent credential rotation. The presence of unrotated credentials for over 20 months across multiple critical systems, including VPN, HR, workflow, and administrative interfaces, represents a significant and persistent access profile. The breadth of exposure across four different platform types suggests either sustained long-term access or recurring compromise and reinfection without effective remediation. While ShadowByt3$ has not been explicitly confirmed to be utilizing these specific credentials, the observed exposure strongly aligns with the persistent access phase that typically precedes ransomware deployment and data exfiltration. The extent of credential exposure and the long period of unrotated access across various internal systems highlight a critical vulnerability. This scenario suggests a high potential for further malicious activity, including unauthorized access, data theft, or ransomware deployment. Immediate actions should include comprehensive credential rotation for all identified accounts and endpoints. Furthermore, a thorough forensic review of all compromised systems and access logs is crucial to understand the full scope of the intrusion and identify any potential lateral movement or persistence mechanisms established by the threat actor. Continued monitoring of dark web sources and stealer logs for any further exposure related to Sinar Mas Agribusiness and Food is also recommended.

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