# UNC5537

> As of 2026-10-04, UNC5537 is a threat actor tracked by Threadlinqs Intelligence across 6 threats spanning data breach, threat actor, threat intel. ATT&CK coverage spans 82 techniques across 14 tactics in 6 of 6 tracked threats. Most-observed techniques: T1530 (Data from Cloud Storage), T1657 (Financial Theft), T1078 (Valid Accounts).

- **Tracked threats:** 6
- **Categories:** DATA_BREACH, THREAT_ACTOR, THREAT_INTEL, CAMPAIGN
- **As of:** 2026-10-04

## ATT&CK techniques observed

82 techniques observed across 6 of 6 tracked threats. Tactics: Credential Access (15), Resource Development (11), Initial Access (9), Collection (7), Discovery (7), Impact (7).

- [T1530](https://intel.threadlinqs.com/technique/T1530) Data from Cloud Storage — Collection — observed in 6 of 6 tracked threats
- [T1657](https://intel.threadlinqs.com/technique/T1657) Financial Theft — Impact — observed in 6 of 6 tracked threats
- [T1078](https://intel.threadlinqs.com/technique/T1078) Valid Accounts — Initial Access — observed in 5 of 6 tracked threats
- [T1213](https://intel.threadlinqs.com/technique/T1213) Data from Information Repositories — Collection — observed in 5 of 6 tracked threats
- [T1550](https://intel.threadlinqs.com/technique/T1550) Use Alternate Authentication Material — Lateral Movement — observed in 5 of 6 tracked threats
- [T1552](https://intel.threadlinqs.com/technique/T1552) Unsecured Credentials — Credential Access — observed in 5 of 6 tracked threats
- [T1566](https://intel.threadlinqs.com/technique/T1566) Phishing — Initial Access — observed in 5 of 6 tracked threats
- [T1567](https://intel.threadlinqs.com/technique/T1567) Exfiltration Over Web Service — Exfiltration — observed in 5 of 6 tracked threats
- [T1588](https://intel.threadlinqs.com/technique/T1588) Obtain Capabilities — Resource Development — observed in 5 of 6 tracked threats
- [T1074](https://intel.threadlinqs.com/technique/T1074) Data Staged — Collection — observed in 4 of 6 tracked threats
- [T1087](https://intel.threadlinqs.com/technique/T1087) Account Discovery — Discovery — observed in 4 of 6 tracked threats
- [T1098](https://intel.threadlinqs.com/technique/T1098) Account Manipulation — Persistence — observed in 4 of 6 tracked threats
- [T1119](https://intel.threadlinqs.com/technique/T1119) Automated Collection — Collection — observed in 4 of 6 tracked threats
- [T1199](https://intel.threadlinqs.com/technique/T1199) Trusted Relationship — Initial Access — observed in 4 of 6 tracked threats
- [T1204](https://intel.threadlinqs.com/technique/T1204) User Execution — Execution — observed in 4 of 6 tracked threats

## Tracked threats

- [Snowflake customer-account extortion campaign (UNC5537): Canadian suspect Connor Riley Moucka pleads guilty](https://intel.threadlinqs.com/threat/TL-2026-2908) — HIGH
- [ShinyHunters Leaks 5.1 Million Panera Bread Customer Records](https://intel.threadlinqs.com/threat/TL-2026-0055) — HIGH
- [ShinyHunters Evolves TTPs: Vishing and Login Harvesting for SSO/MFA Bypass](https://intel.threadlinqs.com/threat/TL-2026-0054) — HIGH
- [ShinyHunters-Branded Extortion Campaign Expands with Vishing & SSO Attacks](https://intel.threadlinqs.com/threat/TL-2026-0045) — HIGH
- [ShinyHunters Extortion Campaign - Evolved Vishing and SSO Credential Theft](https://intel.threadlinqs.com/threat/TL-2026-0030) — HIGH
- [ShinyHunters SSO Vishing Campaign - Cloud Data Theft via Social Engineering](https://intel.threadlinqs.com/threat/TL-2026-0013) — CRITICAL

## Full data

Infrastructure, IOC values and detection queries (Splunk SPL / Microsoft KQL / Sigma) require the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp

Canonical: https://intel.threadlinqs.com/actor/UNC5537