Disclosure context

About gunra

Gunra is an emerging ransomware group that was first observed in April 2025, operating with primarily financial motivations based on their targeting patterns across multiple high-value sectors. The group's origin and affiliations remain unclear due to limited public documentation from major security vendors, though their geographic targeting suggests possible international operations given their focus on victims across Brazil, South Korea, Japan, Canada, and Egypt. With approximately 20 known victims to date, Gunra appears to follow conventional ransomware attack methodologies typical of financially-motivated cybercriminal groups, though specific technical details regarding their initial access vectors, encryption methods, or use of double extortion tactics have not been publicly documented by major threat intelligence sources. The group demonstrates opportunistic targeting behavior, focusing primarily on manufacturing organizations while also compromising entities in healthcare, technology, and financial services sectors, suggesting they may operate opportunistically rather than with highly specialized sector expertise. Given the recent emergence of this group in April 2025 and limited public reporting from established threat intelligence organizations such as CISA, FBI, or major security vendors, Gunra's current operational status, technical capabilities, and long-term threat trajectory require continued monitoring as more intelligence becomes available. The group has been linked to 36 public disclosures across our corpus. First observed on a leak site on April 23, 2025; most recent post April 8, 2026. The operation is currently active.

Timeline of this disclosure

April 8, 2026NeoDerm listed by gunraon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, NeoDerm is reported in HK, a country with 23 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

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NeoDerm

Claimed by gunra · listed 1 month ago

42d

Age

since listed · data leaked

Status timeline

Listed
Apr 8, 2026
Data leaked

At a glance

Group: gunra
Status: Data leaked
Country: HK
Sector: Healthcare
Listed on leak site: Apr 8, 2026

About the victim

AI dossier — public-source company profile

NeoDerm (neoderm.hk) is a Hong Kong-based healthcare company operating in the dermatology and medical aesthetics sector. Based on its domain and sector classification, it likely provides dermatological treatments, skincare, or aesthetic medical services to patients in Hong Kong. Specific operational scale and founding details are not available from the provided data.

Industry: Dermatology & Medical Aesthetics

Attack summary

Severity: high — The status is data_published, indicating confirmed exfiltration and public release. As a healthcare provider, any exfiltrated data is likely to include patient PII and potentially medical records, which are regulated sensitive data; however, the absence of explicit detail on data categories and volume prevents a critical rating.

The ransomware group Gunra claims to have attacked NeoDerm and has published data (disclosed status: data_published), suggesting exfiltration of company or patient data. No specific details on encryption, data volume, or data categories were provided in the leak post.

high

Original description

AI-summarised, not from the leak post

N/A

Sources

Victim siteneoderm.hk
Leak posthttp://lgiil72vkmdtbc3qv4tyq6wedyjxqr2qd4ze7xl2cxgerdnymxj7soqd.onion/company/UT-1nslyVQKm6Hbe9YJFq

Source

Indexed 1 month 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.