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

December 29, 2025INHA University listed by gunraon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Education sector, which has 694 disclosures indexed across all operators we track. Geographically, INHA University is reported in South Korea, a country with 32 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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INHA University

Claimed by gunra · listed 5 months ago

Age

since listed · data leaked

Status timeline

Listed
Dec 29, 2025
Data leaked

At a glance

Group: gunra
Status: Data leaked
Country: South Korea
Sector: Education
Listed on leak site: Dec 29, 2025

About the victim

AI dossier — public-source company profile

INHA University is a private research university located in Incheon, South Korea, established in 1954. It is well known for its programs in engineering, technology, and management, and maintains strong industry and international academic partnerships. The university serves tens of thousands of students and is one of South Korea's prominent research-focused institutions.

Industry: Higher Education & Research
Address: 100 Inha-ro, Michuhol-gu, Incheon, South Korea
Employees: 1001-5000
Founded: 1954

Attack summary

Severity: high — Data has been confirmed as published by the threat actor, indicating successful exfiltration from a university that holds significant volumes of student and staff PII, academic research, and administrative records. Educational institutions handling personal data at scale typically meet the threshold for high severity, though the absence of explicit medical or government data prevents a critical rating.

The Gunra ransomware group claims to have attacked INHA University and has published data (disclosed status: data_published), suggesting exfiltration of university data; no ransom amount or specific data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

University administrative records
Student personal information
Faculty and staff data
Academic research data
Internal communications

Original description

AI-summarised, not from the leak post

INHA University is a private research university located in Incheon, South Korea. It was established in 1954 and is currently known for its programs in engineering, technology, and management. The university is named after the acronym of the Independence and Nationalism sought in developing Highly skilled Authorities, highlighting its commitment to fostering leaders.

Sources

Victim siteinha.ac.kr
Leak posthttp://gunrabxbig445sjqa535uaymzerj6fp4nwc6ngc2xughf2pedjdhk4ad.onion/inha

Source

Indexed 5 months 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.