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Threat actorBrazilTracked since 2026-04

Grandoreiro operators

Also known as:Grandoreiro gangGrandes Origens operatorsLATAM banking trojan crew

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).

Tracked threats
22 high
First seen
2026-04-08
Last seen
2026-05-27
ATT&CK techniques
45across 2 of 2 threats
Related CVEs
0None referenced
Attribution
BrazilNation or origin
Nation: Brazil · 2 tracked threat(s) · Categories: MALWARE

Activity timeline

Grandoreiro operators appears in 2 tracked threats between and ; the busiest month was 2026-04 with 1 report.

ATT&CK techniques observed

45 techniques observed across 2 of 2 tracked threats · Stealth (formerly Defense Evasion) (9), Command and Control (8), Execution (5), Credential Access (4), Discovery (4), Collection (3)
  • T1036.005 Match Legitimate Resource Name or Location — Stealth (formerly Defense Evasion)observed in 2 of 2 tracked threats
  • T1056.001 Keylogging — Credential Accessobserved in 2 of 2 tracked threats
  • T1071.001 Web Protocols — Command and Controlobserved in 2 of 2 tracked threats
  • T1113 Screen Capture — Collectionobserved in 2 of 2 tracked threats
  • T1204.002 User Execution: Malicious File — Executionobserved in 2 of 2 tracked threats
  • T1497.001 Virtualization/Sandbox Evasion: System Checks — Stealth (formerly Defense Evasion)observed in 2 of 2 tracked threats
  • T1547.001 Registry Run Keys / Startup Folder — Persistenceobserved in 2 of 2 tracked threats
  • T1566.002 Spearphishing Link — Initial Accessobserved in 2 of 2 tracked threats
  • T1574.001 DLL — Stealth (formerly Defense Evasion)observed in 2 of 2 tracked threats
  • T1657 Financial Theft — Impactobserved in 2 of 2 tracked threats
  • T1027 Obfuscated Files or Information — Stealth (formerly Defense Evasion)observed in 1 of 2 tracked threats
  • T1027.001 Obfuscated Files or Information: Binary Padding — Stealth (formerly Defense Evasion)observed in 1 of 2 tracked threats
  • T1041 Exfiltration Over C2 Channel — Exfiltrationobserved in 1 of 2 tracked threats
  • T1053.005 Scheduled Task — Persistenceobserved in 1 of 2 tracked threats
  • T1056.002 GUI Input Capture — Credential Accessobserved in 1 of 2 tracked threats

Tracked threats