S1215: Binary Validator
Binary Validator is a Mach-O binary file used during Operation Triangulation.[1] Binary Validator first collects information about the device, such as the device's phone number and a list of installed applications, before the deployment of the TriangleDB implant. After the actions are completed and the data is collected, Binary Validator encrypts and sends the data to the C2 server, and in turn, the C2 server sends the TriangleDB implant.
Security context for executives and security teams
S1215: Binary Validator describes [Binary Validator](https://attack.mitre.org/software/S1215) is a Mach-O binary file used during [Operation Triangulation](https://attack.mitre.org/campaigns/C0054).(Citation: SecureList OpTriangulation 23Oct2023) [Binary Validator](https://attack.mitre.org/software/S1215) first collects information about the device, such as the device's phone number and a list of installed applications, before the deployment of the [TriangleDB](https://attack.mitre.org/software/S1216) implant. After the actions are completed and th...
Executive priority
S1215: Binary Validator 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 S1215: Binary Validator by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (iOS), and available local telemetry before making detection or mitigation decisions.
Likely telemetry
- Official ATT&CK relationships and object metadata
Detection direction
- Validate whether S1215: Binary Validator 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.
Binary Validator
Binary Validator is a Mach-O binary file used during Operation Triangulation.[1] Binary Validator first collects information about the device, such as the device's phone number and a list of installed applications, before the deployment of the TriangleDB implant. After the actions are completed and the data is collected, Binary Validator encrypts and sends the data to the C2 server, and in turn, the C2 server sends the TriangleDB implant.
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 |
|---|---|---|---|
| Mobile | T1627 | Execution Guardrails | Binary Validator has checked if the device is jailbroken.[1] |
| Mobile | T1418 | Software Discovery | Binary Validator has obtained a list of installed applications.[1] |
| Mobile | T1533 | Data from Local System | Binary Validator has searched for and has deleted the malicious iMessage attachment used in the initial access phase in various databases.[1] |
| Mobile | T1424 | Process Discovery | Binary Validator has obtained a list of running processes.[1] |
| Mobile | T1422 | System Network Configuration Discovery | Binary Validator has collected the device’s phone number and IMEI.[1] |
| Mobile | T1630.002 | File DeletionSub-technique | Binary Validator has deleted crash logs which may have been created during the initial exploitation phase stored in `/private/var/mobile/Library/Logs/CrashReporter`.[1] |
| Mobile | T1646 | Exfiltration Over C2 Channel | Binary Validator has exfiltrated collected data to the C2 server.[1] |
Groups, software, and campaigns
C0054: Operation Triangulation
Operation Triangulation is a mobile campaign targeting iOS devices.[1] The unidentified actors used zero-click exploits in iMessage attachments to gain Initial Access, then executed exploits and validators, such as Binary Validator before finally executing the TriangleDB implant.
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 | f991f81ab118… | ||
| 19.1 | 1.0 | Older bundle | f991f81ab118… |
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]SecureList OpTriangulation 23Oct2023
Kucherin, G., et al. (2023, October 23). The outstanding stealth of Operation Triangulation. Retrieved April 18, 2024.
Open source URL - [2]mitre-attackS1215Open source URL
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