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Darkfield

Operator dossier

crazyhunter is a ransomware operator no longer publishing new disclosures. Darkfield has indexed 10 public victims claimed by this operator between March 9, 2025 and March 30, 2025. CrazyHunter is a recently emerged ransomware group first observed in March 2025, operating with apparent 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, though their operational focus on Taiwan and the United States suggests either geographic proximity to these regions or specific economic interests in these markets. Based on available data, CrazyHunter has compromised at least 10 victims across healthcare, manufacturing, technology, and consumer services sectors, demonstrating a broad targeting approach typical of opportunistic ransomware operations. The group's attack methodology, encryption techniques, and specific tools remain undocumented in public threat intelligence reporting from major security firms and government agencies. Given the recent emergence of this group and limited public reporting, notable campaigns and specific high-profile incidents have not been documented by reputable security researchers or law enforcement agencies. CrazyHunter appears to remain active as of the latest available intelligence, though the group's operational scale and sophistication cannot be definitively assessed due to insufficient public documentation.

Most-targeted sectors

Most-affected countries

Recent disclosures by crazyhunter

All 10 indexed disclosures. Click any row for the full per-victim dossier.

See every disclosure indexed for crazyhunter →

How we know this. Operator profiles on Darkfield are built from continuous monitoring of every leak site the group is known to operate, cross-correlated with community-curated feeds (RansomLook, ransomware.live, RansomWatch, MISP-galaxy). Status flips from active to inactive when no new disclosure appears for 60 days. MITRE ATT&CK mappings shown in the interactive section below are sourced from CISA, vendor analysis, and the MITRE community catalog — we attribute each technique back to its source. Aliases reflect operator re-brands and affiliate splits.

Inactive ransomware operator

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crazyhunter

10 victims indexed · first seen 1 year ago · last activity 1 year ago

10
Victims indexed
#209 of 364 tracked operators
<1m
Active period
Mar 2025 → Mar 2025
2
Countries hit
top TW · 8

At a glance

Status
inactive
First seen
1 year ago
Last activity
1 year ago
Primary sector
Healthcare · 3 hits

About

CrazyHunter is a recently emerged ransomware group first observed in March 2025, operating with apparent 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, though their operational focus on Taiwan and the United States suggests either geographic proximity to these regions or specific economic interests in these markets. Based on available data, CrazyHunter has compromised at least 10 victims across healthcare, manufacturing, technology, and consumer services sectors, demonstrating a broad targeting approach typical of opportunistic ransomware operations. The group's attack methodology, encryption techniques, and specific tools remain undocumented in public threat intelligence reporting from major security firms and government agencies. Given the recent emergence of this group and limited public reporting, notable campaigns and specific high-profile incidents have not been documented by reputable security researchers or law enforcement agencies. CrazyHunter appears to remain active as of the latest available intelligence, though the group's operational scale and sophistication cannot be definitively assessed due to insufficient public documentation.

Timeline

1 months
2025-03-01T00:00:00+00:00 · 10
2025-03-01T00:00:00+00:002025-03-01T00:00:00+00:00

Top countries

🇹🇼 Taiwan
8
🇺🇸 United States
1
Taiwan dossier →United States dossier →

Top sectors

Healthcare
3
Manufacturing
2
Technology
2
Consumer Services
1
Education
1
Healthcare dossier →Manufacturing dossier →Technology dossier →Consumer Services dossier →

MITRE ATT&CK

5 techniques · 3 tactics

Tactics

Initial AccessExecutionImpact

Techniques

  • T1566Phishing
  • T1190Exploit Public-Facing Application
  • T1204User Execution
  • T1059Command and Scripting Interpreter
  • T1486Data Encrypted for Impact

Recent victims

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Source

Updated 1 year ago

Data on this page is sourced from the group's own leak posts, cross-checked with public ransomware trackers (RansomLook, ransomware.live, RansomWatch), MITRE ATT&CK, and our own Tor and Telegram crawlers. This is a public observatory page — share freely.

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