AN0309: Analytic 0309
Detection correlates message events in email and collaboration tools (e.g., Outlook, Teams) that contain regex-like patterns resembling credentials, API keys, or tokens. Anomalous forwarding or bulk copy activity of chat/email content containing secrets is flagged. Suspicious behavior includes users pasting secrets into direct messages or attaching config files with passwords.
Analyst context for executives and security teams
This analytic matters because secrets shared through office collaboration tools can turn normal email or chat activity into an identity and cloud access risk. The supplied ATT&CK object focuses on detecting messages or attachments in tools such as Outlook and Teams that appear to contain credentials, API keys, tokens, or password-bearing configuration files, especially when paired with forwarding, bulk copying, or direct-message sharing behavior.
Executive priority
Leaders should treat this as a control-validation issue for identity hygiene, cloud access protection, and incident readiness. The key business question is whether the organization can identify when sensitive secrets are exposed through Office Suite communication channels and respond before those secrets are reused elsewhere. This is also useful evidence for security governance and compliance programs that require monitoring of sensitive data handling, credential protection, and incident response processes.
Technical view
For SOC, detection engineering, and IR teams, validate whether message-event telemetry from supported Office Suite collaboration and email tools is available, searchable, and correlated with content indicators that resemble credentials, API keys, tokens, or password-containing configuration files. Because the object has no supplied ATT&CK tactic and no relationship context, treat it as a detection analytic for risky secret exposure behavior rather than a complete attack-chain indicator. Tuning should consider user role, expected administrative or developer workflows, message direction, attachment type, forwarding behavior, and bulk copy patterns.
Likely telemetry
- Email message events from Office Suite mail platforms
- Collaboration/chat message events from Office Suite tools
- Message metadata such as sender, recipient, channel or chat context, timestamp, forwarding activity, and volume
- Attachment metadata, especially configuration or text-like files that may contain passwords or tokens
- Content inspection matches for regex-like credential, API key, or token patterns where policy and tooling permit
Detection direction
- Validate that regex-like secret matching is applied to the relevant email and collaboration data sources, not only to endpoint or repository logs.
- Correlate possible secret content with behavior that raises risk, such as unusual forwarding, bulk copy activity, direct-message sharing, or attaching configuration files with passwords.
- Tune false positives around legitimate operational workflows, such as administrators, developers, service desk activity, or approved secret rotation processes.
- Confirm alert context includes enough message metadata for triage without overexposing sensitive secret values to analysts.
- Assess blind spots where encrypted content, unsupported collaboration channels, limited retention, or privacy restrictions prevent inspection.
Mitigation priorities
- Reduce the need to share secrets in email or chat by prioritizing approved secret-management and credential-handling processes.
- Define and enforce policy for sending credentials, API keys, tokens, and password-bearing configuration files through Office Suite channels.
- Use monitoring results to drive user coaching, incident response playbooks, and secret rotation procedures when exposure is confirmed.
- Review access, forwarding, and bulk export controls for collaboration and email content.
- Ensure SOC and IR teams have an escalation path to validate exposure, contain access risk, and preserve evidence without unnecessarily spreading the secret further.
Analyst notes and limits
The supplied object is an ATT&CK detection analytic, not a technique, and no relationships or tactics were provided. Its value is in validating whether collaboration and email telemetry can reveal secret exposure behavior in Office Suite environments. Local policy, privacy constraints, retention, and content-inspection capability will determine how actionable this analytic is.
Official detection text was not provided beyond the analytic description, and no related techniques, mitigations, data components, or adversary relationships were supplied. This take does not assert active exploitation, attribution, guaranteed detection, or coverage outside Office Suite platforms.
Analytic 0309
Detection correlates message events in email and collaboration tools (e.g., Outlook, Teams) that contain regex-like patterns resembling credentials, API keys, or tokens. Anomalous forwarding or bulk copy activity of chat/email content containing secrets is flagged. Suspicious behavior includes users pasting secrets into direct messages or attaching config files with passwords.
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.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
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 (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | a8e5cc3da6aa… |
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.
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mitre-attack AN0309Open source URL
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