# Grandoreiro operators

> As of 2026-05-30, Grandoreiro operators is a Brazil-nexus threat actor tracked by Threadlinqs Intelligence across 2 threats spanning malware. Also known as Grandoreiro gang, Grandes Origens operators, LATAM banking trojan crew. ATT&CK coverage spans 45 techniques across 13 tactics in 2 of 2 tracked threats. Most-observed techniques: T1036.005 (Match Legitimate Resource Name or Location), T1056.001 (Keylogging), T1071.001 (Web Protocols).

- **Nation:** Brazil
- **Tracked threats:** 2
- **Categories:** MALWARE
- **Also known as:** Grandoreiro gang, Grandes Origens operators, LATAM banking trojan crew
- **As of:** 2026-05-30

## ATT&CK techniques observed

45 techniques observed across 2 of 2 tracked threats. Tactics: Stealth (formerly Defense Evasion) (9), Command and Control (8), Execution (5), Credential Access (4), Discovery (4), Collection (3).

- [T1036.005](https://intel.threadlinqs.com/technique/T1036.005) Match Legitimate Resource Name or Location — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1056.001](https://intel.threadlinqs.com/technique/T1056.001) Keylogging — Credential Access — observed in 2 of 2 tracked threats
- [T1071.001](https://intel.threadlinqs.com/technique/T1071.001) Web Protocols — Command and Control — observed in 2 of 2 tracked threats
- [T1113](https://intel.threadlinqs.com/technique/T1113) Screen Capture — Collection — observed in 2 of 2 tracked threats
- [T1204.002](https://intel.threadlinqs.com/technique/T1204.002) User Execution: Malicious File — Execution — observed in 2 of 2 tracked threats
- [T1497.001](https://intel.threadlinqs.com/technique/T1497.001) Virtualization/Sandbox Evasion: System Checks — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1547.001](https://intel.threadlinqs.com/technique/T1547.001) Registry Run Keys / Startup Folder — Persistence — observed in 2 of 2 tracked threats
- [T1566.002](https://intel.threadlinqs.com/technique/T1566.002) Spearphishing Link — Initial Access — observed in 2 of 2 tracked threats
- [T1574.001](https://intel.threadlinqs.com/technique/T1574.001) DLL — Stealth (formerly Defense Evasion) — observed in 2 of 2 tracked threats
- [T1657](https://intel.threadlinqs.com/technique/T1657) Financial Theft — Impact — observed in 2 of 2 tracked threats
- [T1027](https://intel.threadlinqs.com/technique/T1027) Obfuscated Files or Information — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1027.001](https://intel.threadlinqs.com/technique/T1027.001) Obfuscated Files or Information: Binary Padding — Stealth (formerly Defense Evasion) — observed in 1 of 2 tracked threats
- [T1041](https://intel.threadlinqs.com/technique/T1041) Exfiltration Over C2 Channel — Exfiltration — observed in 1 of 2 tracked threats
- [T1053.005](https://intel.threadlinqs.com/technique/T1053.005) Scheduled Task — Persistence — observed in 1 of 2 tracked threats
- [T1056.002](https://intel.threadlinqs.com/technique/T1056.002) GUI Input Capture — Credential Access — observed in 1 of 2 tracked threats

## Tracked threats

- [Grandoreiro Banking Trojan Resurgence (May 2026) — Dual-Vector DLL Side-Loading & VBS Geofenced Campaign with SGC WebSockets/WebRTC C2 Tunneled Through Google Cloud Pub/Sub, Azure MQTT and AWS MQTT Targeting 20+ Portuguese Banks, Spain, Mexico and LATAM](https://intel.threadlinqs.com/threat/TL-2026-0609) — HIGH
- [Grandoreiro Banking Trojan Multi-Vector Campaign: ClickFix Delivery via canalmodup.com, Dual DLL Sideloading (GoToMeeting/Nero), PIX QR Interception in Brazil, and Parallel WebRTC/STUN Campaign Targeting Iberian Banks](https://intel.threadlinqs.com/threat/TL-2026-2069) — HIGH

## 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/Grandoreiro%20operators