Grandoreiro (also known as Grandoreiro) is a banking trojan active since 2016. LATAM banking trojan. Key characteristics include: Delphi-based, banking overlays, targets Spain/LATAM/Portugal, operator arrests 2024.
Overview & Background
LATAM banking trojan. First identified in 2016, this threat is attributed to eCrime / LATAM.
Threat Assessment
Grandoreiro remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this banking trojan.
- Category: Banking Trojan
- Active since: 2016
- Attribution: eCrime / LATAM
- Also known as: Grandoreiro
Technical Analysis
Grandoreiro employs the following capabilities and techniques:
- Delphi-Based: Core functionality
- Banking Overlays: Core functionality
- Targets Spain/Latam/Portugal: Core functionality
- Operator Arrests 2024: Core functionality
MITRE ATT&CK Mapping
| Tactic | Technique | Usage |
|---|---|---|
| Initial Access | T1566.001 Phishing Attachment | Common delivery vector |
| Execution | T1204.002 Malicious File | User-triggered execution |
| Persistence | T1547.001 Registry Run Keys | Autostart persistence |
| Defense Evasion | T1027 Obfuscated Files | Payload obfuscation |
| C2 | T1071.001 Web Protocols | HTTP/HTTPS C2 |
Detection & Defense
- Endpoint detection: Deploy behavioral detection rules for Grandoreiro indicators
- Network monitoring: Monitor for C2 traffic patterns and anomalous connections
- Threat intelligence: Track Grandoreiro IOCs and campaign updates
- Security awareness: Train users to recognize phishing and social engineering
- Patch management: Keep systems updated to prevent exploitation
Defend Against Grandoreiro
Mjolnir Security provides detection and response capabilities against Grandoreiro and similar threats.
Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
- Proactive Threat Hunting Hunt for Grandoreiro indicators and TTPs within your environment.
- Threat Intelligence Monitor Grandoreiro campaigns and infrastructure changes.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security | Published: August 20, 2025
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