S1017: OutSteel
OutSteel is a file uploader and document stealer developed with the scripting language AutoIT that has been used by Saint Bear since at least March 2021.[1]
Security context for executives and security teams
S1017: OutSteel describes [OutSteel](https://attack.mitre.org/software/S1017) is a file uploader and document stealer developed with the scripting language AutoIT that has been used by [Saint Bear](https://attack.mitre.org/groups/G1031) since at least March 2021.(Citation: Palo Alto Unit 42 OutSteel SaintBot February 2022 )
Executive priority
S1017: OutSteel is an official MITRE ATT&CK software. 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 S1017: OutSteel by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.
Likely telemetry
- Official ATT&CK relationships and object metadata
- Network, endpoint, and security-tool telemetry
Detection direction
- Validate whether S1017: OutSteel 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.
OutSteel
OutSteel is a file uploader and document stealer developed with the scripting language AutoIT that has been used by Saint Bear since at least March 2021.[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 | T1059.003 | Windows Command ShellSub-technique | |
| Enterprise | T1041 | Exfiltration Over C2 Channel | |
| Enterprise | T1566.002 | Spearphishing LinkSub-technique | |
| Enterprise | T1204.001 | Malicious LinkSub-technique | |
| Enterprise | T1005 | Data from Local System | |
| Enterprise | T1020 | Automated Exfiltration | |
| Enterprise | T1059.010 | AutoHotKey & AutoITSub-technique | |
| Enterprise | T1083 | File and Directory Discovery | |
| Enterprise | T1119 | Automated Collection | |
| Enterprise | T1204.002 | Malicious FileSub-technique | |
| Enterprise | T1566.001 | Spearphishing AttachmentSub-technique | |
| Enterprise | T1070.004 | File DeletionSub-technique | |
| Enterprise | T1570 | Lateral Tool Transfer | |
| Enterprise | T1071.001 | Web ProtocolsSub-technique | |
| Enterprise | T1105 | Ingress Tool Transfer | |
| Enterprise | T1057 | Process Discovery | |
| Enterprise | T1036.005 | Match Legitimate Resource Name or LocationSub-technique |
Groups, software, and campaigns
G1031: Saint Bear
Saint Bear 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, and information stealer, OutSteel in campaigns. Saint Bear typically relies on phishing or web staging of malicious documents and related file types for initial access, spoofing government or related entities.[1][2] Saint Bear has previously been confused with Ember Bear operations, but analysis of behaviors, tools, and targeting indicates these are distinct clusters.
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 | 2.0 | Current bundle | 07bdaa10c1bf… | ||
| 19.1 | 2.0 | Older bundle | 07bdaa10c1bf… |
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]Palo Alto Unit 42 OutSteel SaintBot February 2022
Unit 42. (2022, February 25). Spear Phishing Attacks Target Organizations in Ukraine, Payloads Include the Document Stealer OutSteel and the Downloader SaintBot. Retrieved June 9, 2022.
Open source URL - [2]mitre-attackS1017Open source URL
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