RANSOMWARE VICTIMDUPLICATE CLAIM

Kobayashi

www.kbjapan.co.jp
worldleaks📍 Japan (JP)📅 October 24, 2025
8
same group

Attack Intelligence

Kobayashi was compromised in a ransomware attack attributed to worldleaks in October 2025. The organization, operating in an undisclosed sector in Japan, was added to the group's data leak site as part of an extortion campaign.

worldleaks operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.

[AI generated] Kobayashi Pharmaceutical Co. Ltd. is a Japanese company that specializes in the manufacturing and sale of over-the-counter drugs, oral hygiene products, and healthcare items. Their extensive product line-up includes cool fever patches, pain relief patches, skin creams, oral care products, and other health-related goods garnering a global presence. They focus on enhancing everyday health and comfort for their customers.

Additional Details

Other Victims — worldleaks (8)

Quick Facts

CountryJapan (JP)
Attack DateOct 24, 2025
Domainwww.kbjapan.co.jp
Intel Sourceransomware.live
StatusDUPLICATE CLAIM

Threat Group

worldleaks
Motivation: financial
View group profile →

External Links

Data sourced from Ransomware.live, RansomLook, and CTIWATCH OSINT collection. Victim listing does not imply confirmed breach — intelligence based on group claims.