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Operator dossier

trisec is a ransomware operator no longer publishing new disclosures. Darkfield has indexed 3 public victims claimed by this operator between February 16, 2024 and February 19, 2024. **Trisec** is a recently emerged ransomware group that first appeared in February 2024, operating with apparent financial motivations based on their targeting of business-critical sectors. The group has demonstrated a focused operational scope with only three documented victims to date, suggesting either a highly selective targeting approach or nascent operational capabilities. The origin and affiliations of Trisec remain largely unknown, with limited public intelligence available from major threat research organizations. Based on their targeting pattern across Sweden, Ireland, and Italy, the group appears to operate independently rather than as part of a larger ransomware-as-a-service ecosystem, though definitive attribution data is not yet available. Trisec's attack methodology and technical capabilities have not been extensively documented by established security researchers, though their sector targeting suggests they focus on organizations with critical business operations in healthcare, technology, and business services sectors. The group's specific initial access vectors, encryption methods, and whether they employ data exfiltration tactics prior to encryption have not been publicly detailed by major cybersecurity firms or government agencies. No major high-profile campaigns or significant ransomware payments have been publicly attributed to Trisec by law enforcement agencies such as the FBI or CISA, likely due to the group's recent emergence and limited victim count. The group remains active as of current intelligence reporting, though their operational tempo appears limited compared to more established ransomware operations.

Most-targeted sectors

Most-affected countries

Recent disclosures by trisec

All 3 indexed disclosures. Click any row for the full per-victim dossier.

See every disclosure indexed for trisec →

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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trisec

3 victims indexed · first seen 2 years ago · last activity 2 years ago

3
Victims indexed
#280 of 364 tracked operators
<1m
Active period
Feb 2024 → Feb 2024
3
Countries hit
top SE · 1

At a glance

Status
inactive
First seen
2 years ago
Last activity
2 years ago
Onion sites
1 known endpoint
Primary sector
Business Services · 1 hits

About

**Trisec** is a recently emerged ransomware group that first appeared in February 2024, operating with apparent financial motivations based on their targeting of business-critical sectors. The group has demonstrated a focused operational scope with only three documented victims to date, suggesting either a highly selective targeting approach or nascent operational capabilities. The origin and affiliations of Trisec remain largely unknown, with limited public intelligence available from major threat research organizations. Based on their targeting pattern across Sweden, Ireland, and Italy, the group appears to operate independently rather than as part of a larger ransomware-as-a-service ecosystem, though definitive attribution data is not yet available. Trisec's attack methodology and technical capabilities have not been extensively documented by established security researchers, though their sector targeting suggests they focus on organizations with critical business operations in healthcare, technology, and business services sectors. The group's specific initial access vectors, encryption methods, and whether they employ data exfiltration tactics prior to encryption have not been publicly detailed by major cybersecurity firms or government agencies. No major high-profile campaigns or significant ransomware payments have been publicly attributed to Trisec by law enforcement agencies such as the FBI or CISA, likely due to the group's recent emergence and limited victim count. The group remains active as of current intelligence reporting, though their operational tempo appears limited compared to more established ransomware operations.

References

1 link

External sources curated by the MISP threat-intel community.

Timeline

1 months
2024-02-01T00:00:00+00:00 · 3
2024-02-01T00:00:00+00:002024-02-01T00:00:00+00:00

Top countries

🇸🇪 Sweden
1
🇮🇪 Ireland
1
🇮🇹 Italy
1
Sweden dossier →Ireland dossier →Italy dossier →

Top sectors

Business Services
1
Healthcare
1
Technology
1
Business Services dossier →Healthcare dossier →Technology 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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Onion infrastructure

1 known
  • http://orfc3joknhrzscdbuxajypgrvlcawtuagbj7f44ugbosuvavg3dc3zid.onion

Source

Updated 2 years 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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