Threat Actor

Saint Bear

Also known as: Saint Bear, Storm-0587, TA471, UAC-0056, Lorec53

[Saint Bear](https://attack.mitre.org/groups/G1031) is a Russian-nexus threat actor active since early 2021, primarily targeting entities in Ukraine and Georgia. The group is notable for a specific remote access tool, [Saint Bot](https://attack.mitre.org/software/S1018), and information stealer, [OutSteel](https://attack.mitre.org/software/S1017) in campaigns. [Saint Bear](https://attack.mitre.org/groups/G1031) typically relies on phishing or web staging of malicious documents and related file types for initial access, spoofing government or related entities.(Citation: Palo Alto Unit 42 OutSteel SaintBot February 2022 )(Citation: Cadet Blizzard emerges as novel threat actor) [Saint Bear](https://attack.mitre.org/groups/G1031) has previously been confused with [Ember Bear](https://attack.mitre.org/groups/G1003) operations, but analysis of behaviors, tools, and targeting indicates these are distinct clusters.

20
Techniques
2
Software

Properties

stix_id
intrusion-set--674582ec-51c4-42ce-b409-797239e37a2a
signal_observed_at
2026-09-11T17:54:59+00:00
type
intrusion-set

MITRE ATT&CK Techniques (20)

Code Signing

Adversaries may create, acquire, or steal code signing materials to sign their malware or tools. Code signing provides a level of authenticity on a bi

Command and Scripting Interpreter

Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries. These interfaces and languages provide ways of intera

Disable or Modify Tools

Adversaries may disable, degrade, or tamper with security tools or applications (e.g., endpoint detection and response (EDR) tools, intrusion detectio

Disable or Modify Tools

Adversaries may modify and/or disable security tools to avoid possible detection of their malware/tools and activities. This may take many forms, such

Email Addresses

Adversaries may gather email addresses that can be used during targeting. Even if internal instances exist, organizations may have public-facing email

Encrypted/Encoded File

Adversaries may encrypt or encode files to obfuscate strings, bytes, and other specific patterns to impede detection. Encrypting and/or encoding file

Exploitation for Client Execution

Adversaries may exploit software vulnerabilities in client applications to execute code. Vulnerabilities can exist in software due to unsecure coding

Impersonation

Adversaries may impersonate a trusted person or organization in order to persuade and trick a target into performing some action on their behalf. For

Impersonation

Adversaries may impersonate a trusted person or organization in order to persuade and trick a target into performing some action on their behalf. For

JavaScript

Adversaries may abuse various implementations of JavaScript for execution. JavaScript (JS) is a platform-independent scripting language (compiled just

Malicious File

An adversary may rely upon a user opening a malicious file in order to gain execution. Users may be subjected to social engineering to get them to ope

Malicious Link

An adversary may rely upon a user clicking a malicious link in order to gain execution. Users may be subjected to social engineering to get them to cl

Modify Registry

Adversaries may interact with the Windows Registry as part of a variety of other techniques to aid in defense evasion, persistence, and execution. Ac

PowerShell

Adversaries may abuse PowerShell commands and scripts for execution. PowerShell is a powerful interactive command-line interface and scripting environ

Software Packing

Adversaries may perform software packing or virtual machine software protection to conceal their code. Software packing is a method of compressing or

Spearphishing Attachment

Adversaries may send spearphishing emails with a malicious attachment in an attempt to gain access to victim systems. Spearphishing attachment is a sp

Upload Malware

Adversaries may upload malware to third-party or adversary controlled infrastructure to make it accessible during targeting. Malicious software can in

Virtualization/Sandbox Evasion

Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the re

Web Services

Adversaries may register for web services that can be used during targeting. A variety of popular websites exist for adversaries to register for a web

Windows Command Shell

Adversaries may abuse the Windows command shell for execution. The Windows command shell ([cmd](https://attack.mitre.org/software/S0106)) is the prima

Software & Tools (2)

OutSteel [malware]

[OutSteel](https://attack.mitre.org/software/S1017) is a file uploader and document stealer developed with the scripting language AutoIT that has been

Saint Bot [malware]

[Saint Bot](https://attack.mitre.org/software/S1018) is a .NET downloader that has been used by [Saint Bear](https://attack.mitre.org/groups/G1031) si

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