H3XA — Operational Evidence

TypeMalware

External ID—

First seen2026-08-14

Last seen2026-08-14

Confidence

—

[GrimAgent](https://attack.mitre.org/software/S0632) is a backdoor that has been used before the deployment of [Ryuk](https://attack.mitre.org/software/S0446) ransomware since at least 2020; it is likely used by [FIN6](https://attack.mitre.org/groups/G0037) and [Wizard Spider](https://attack.mitre.org/groups/G0102).(Citation: Group IB GrimAgent July 2021)

Labels

malware

27 recorded

Relationships

uses

from FIN6

Group

uses

to Asymmetric Cryptography

Technique

uses

to Binary Padding

Technique

uses

to Clear Persistence

Technique

uses

to Data from Local System

Technique

uses

to Deobfuscate/Decode Files or Information

Technique

uses

to Exfiltration Over C2 Channel

Technique

uses

to File and Directory Discovery

Technique

uses

to File Deletion

Technique

uses

to Ingress Tool Transfer

Technique

uses

Technique

uses

to Mutual Exclusion

Technique

uses

Technique

uses

to Obfuscated Files or Information

Technique

uses

to Registry Run Keys / Startup Folder

Technique

uses

to Scheduled Task

Technique

uses

to Standard Encoding

Technique

uses

to Symmetric Cryptography

Technique

uses

to System Information Discovery

Technique

uses

to System Language Discovery

Technique

uses

to System Location Discovery

Technique

uses

to System Network Configuration Discovery

Technique

uses

to System Owner/User Discovery

Technique

uses

to Time Based Checks

Technique

uses

to Web Protocols

Technique

uses

to Windows Command Shell

Technique

uses

from Wizard Spider

Group

2 external

References

mitre-attack

S0632

Group IB GrimAgent July 2021

https://www.group-ib.com/blog/grimagent/