AN0739: Analytic 0739
Detects removal of Apple Mail artifacts via AppleScript or direct deletion of mailbox content in ~/Library/Mail/, especially when preceded by Remote Login or C2-related API access.
Analyst context for executives and security teams
This analytic matters because deletion of Apple Mail artifacts on macOS can remove evidence from a user’s mailbox and weaken incident reconstruction. For security leaders, the practical question is whether the organization can see suspicious mailbox-content removal on managed Macs, especially when it follows remote access activity or other command-and-control-like access patterns.
Executive priority
Prioritize this where macOS endpoints and Apple Mail are material to business operations, legal discovery, investigations, or executive communications. The value is not just malware detection; it is preserving investigation evidence and validating that endpoint monitoring can connect potentially suspicious remote access with destructive or evasive file activity in a user mail store.
Technical view
SOC and IR teams should validate whether macOS telemetry can identify AppleScript-driven removal of Apple Mail artifacts and direct deletion of content under ~/Library/Mail/. Because the supplied ATT&CK object notes higher concern when preceded by Remote Login or C2-related API access, detection engineering should correlate mailbox artifact deletion with recent remote login/session activity or suspicious remote-control/API behavior where such telemetry exists. No official detection logic is provided, so local implementation must define event sources, correlation windows, and acceptable administrative or user-driven exceptions.
Likely telemetry
- macOS endpoint file activity for ~/Library/Mail/ paths
- Process execution telemetry involving AppleScript execution or Apple Mail-related automation
- Remote Login or remote session logs on macOS systems
- Endpoint telemetry that may indicate C2-related API access or remote-control behavior
- User, host, and timestamp context to correlate prior access with mailbox artifact removal
Detection direction
- Confirm collection coverage on macOS endpoints; this analytic is platform-scoped to macOS.
- Build or validate alerts for unusual deletion or modification of Apple Mail mailbox content under ~/Library/Mail/.
- Correlate mailbox artifact removal with preceding Remote Login activity or C2-related API access when those data sources are available.
- Tune for legitimate user cleanup, mailbox maintenance, backup/restore tooling, and administrative scripts to reduce false positives.
- Treat absence of official detection text as a requirement for local testing rather than assuming coverage from generic endpoint logging.
Mitigation priorities
- Ensure managed macOS endpoints generate and retain sufficient endpoint, file, process, and remote access telemetry for investigation.
- Limit and monitor Remote Login access according to business need and administrative policy.
- Review controls around scripting and automation on macOS, especially AppleScript use that can affect user mail data.
- Preserve relevant logs and mailbox artifact evidence during incident response to support reconstruction and compliance needs.
- Document detection assumptions and gaps for audit, incident response readiness, and control validation.
Analyst notes and limits
The object is a detection analytic, not a technique description. Its strongest decision value is in validating visibility and correlation around Apple Mail artifact deletion on macOS, particularly after remote access indicators. There are no supplied relationships, tactics, aliases, or detailed detection logic, so this take stays focused on defensible monitoring and readiness questions.
Based only on the supplied ATT&CK fields for AN0739. No official detection logic, relationship context, adversary attribution, active exploitation claim, or impact assessment was provided. Local environment evidence is required to determine whether this behavior is malicious, authorized, or normal user activity.
Analytic 0739
Detects removal of Apple Mail artifacts via AppleScript or direct deletion of mailbox content in ~/Library/Mail/, especially when preceded by Remote Login or C2-related API access.
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 | 69715bda3507… |
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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[1]
mitre-attack AN0739Open source URL
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