G1026: Malteiro
Malteiro is a financially motivated criminal group that is likely based in Brazil and has been active since at least November 2019. The group operates and distributes the Mispadu banking trojan via a Malware-as-a-Service (MaaS) business model. Malteiro mainly targets victims throughout Latin America (particularly Mexico) and Europe (particularly Spain and Portugal).[1]
Security context for executives and security teams
G1026: Malteiro describes [Malteiro](https://attack.mitre.org/groups/G1026) is a financially motivated criminal group that is likely based in Brazil and has been active since at least November 2019. The group operates and distributes the [Mispadu](https://attack.mitre.org/software/S1122) banking trojan via a Malware-as-a-Service (MaaS) business model. [Malteiro](https://attack.mitre.org/groups/G1026) mainly targets victims throughout Latin America (particularly Mexico) and Europe (particularly Spain and Portugal).(Citation: SCILabs Malteiro...
Executive priority
G1026: Malteiro is an official MITRE ATT&CK group. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.
Technical view
Security teams should validate G1026: Malteiro by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (the platforms named in the official object), and available local telemetry before making detection or mitigation decisions.
Likely telemetry
- Official ATT&CK relationships and object metadata
Detection direction
- Validate whether G1026: Malteiro appears in your detection coverage and tabletop scenarios.
- Use the object to align executive risk language with SOC, incident response, and detection engineering work.
- Do not treat ATT&CK relationship context as attribution without corroborating evidence.
Mitigation priorities
- Map the object to existing controls and identify missing telemetry or response ownership.
- Prioritize mitigations that reduce exposure on the listed platforms and tactics.
- Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits
Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.
This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Malteiro
Malteiro is a financially motivated criminal group that is likely based in Brazil and has been active since at least November 2019. The group operates and distributes the Mispadu banking trojan via a Malware-as-a-Service (MaaS) business model. Malteiro mainly targets victims throughout Latin America (particularly Mexico) and Europe (particularly Spain and Portugal).[1]
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
Techniques used
This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| Enterprise | T1204.002 | Malicious FileSub-technique | |
| Enterprise | T1555.003 | Credentials from Web BrowsersSub-technique | |
| Enterprise | T1055.001 | Dynamic-link Library InjectionSub-technique | |
| Enterprise | T1657 | Financial Theft | |
| Enterprise | T1082 | System Information Discovery | |
| Enterprise | T1059.005 | Visual BasicSub-technique | |
| Enterprise | T1027.013 | Encrypted/Encoded FileSub-technique | Malteiro has used scripts encoded in Base64 certificates to distribute malware to victims.CitationSCILabs Malteiro Threat Overlap 2023 |
| Enterprise | T1518.001 | Security Software DiscoverySub-technique | |
| Enterprise | T1566.001 | Spearphishing AttachmentSub-technique | |
| Enterprise | T1555 | Credentials from Password Stores | |
| Enterprise | T1140 | Deobfuscate/Decode Files or Information | |
| Enterprise | T1614.001 | System Language DiscoverySub-technique |
Groups, software, and campaigns
S1122: Mispadu
Mispadu is a banking trojan written in Delphi that was first observed in 2019 and uses a Malware-as-a-Service (MaaS) business model.[1][2] This malware is operated, managed, and sold by the Malteiro cybercriminal group.[2] Mispadu has mainly been used to target victims in Brazil and Mexico, and has also had confirmed operations throughout Latin America and Europe.[2][3][4]
All related ATT&CK context
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates.
Imported snapshots across ATT&CK releases(2)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.2 | 1.0 | Current bundle | b3211d4ffe4e… | ||
| 19.1 | 1.0 | Older bundle | af61f07ea3e0… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
- [1]SCILabs Malteiro 2021
SCILabs. (2021, December 23). Cyber Threat Profile Malteiro. Retrieved March 13, 2024.
Open source URL - [2]mitre-attackG1026Open source URL
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