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Mallory
🇧🇷 BR1 malware family

Tetrade

Also known asTetrade

Tetrade is a Brazilian-origin cybercriminal group associated in the provided content with banking malware activity. The content specifically states that Grandoreiro is part of the Tetrade group and that Grandoreiro remained active in 2025 despite a major law-enforcement disruption in early 2024. In 2025, Brazilian-origin families such as Grandoreiro, identified as part of Tetrade, were noted for constant activity and global reach. Based on the provided content, Tetrade is linked to financially motivated operations involving banking malware targeting desktop banking platforms. Known alias in the content: tetrade. Known associated malware/sub-group mentioned in the content: Grandoreiro.

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OPERATIONAL PROFILE

Targeting

Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.

Who they target

Sectors the actor has been observed targeting.

  • Banks
  • Financial Services

Where they're from

Attributed origin per open-source reporting.

  • BR
What this page doesn’t show

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This page is what’s public. Mallory adds the parts that aren’t: sector and geo overlap with your footprint, the IOCs they’re burning right now, detection coverage, and what to do next.
Target overlap

Match sector + geo + tech-stack targeting against your real footprint.

Tradecraft mapping

Every observed MITRE ATT&CK technique, grouped by tactic.

Malware arsenal1

Families this actor is known to deploy, with IOCs and behavior.

Exploited CVEs

CVEs this actor has used in known campaigns.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Observables

Domains, IPs, and hashes tied to this actor, refreshed continuously.