Techniques › T1566.001 › AN0657
AN0657 Analytic 0657
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Phishing attachment detection on macOS through correlation of Mail app logs, file creation in user directories, and abnormal process execution (e.g., Preview.app or Mail.app spawning Terminal or scripting binaries). Network traffic after attachment interaction is also monitored.</p>
- Detects
- T1566.001 Spearphishing Attachment
- Part of
- DET0236 Detection Strategy for Spearphishing Attachment across OS Platforms
Log sources and channels
Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.
| Log source | Channel | Data component |
|---|---|---|
| macos:unifiedlog | Inbound messages with attachments from suspicious domains | DC0038 Application Log Content |
| macos:unifiedlog | Execution of Terminal, osascript, or other interpreters originating from Mail or Preview | DC0032 Process Creation |
| macos:unifiedlog | Attachment files written to ~/Downloads or temporary folders | DC0039 File Creation |
Mutable elements
Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.
| Field | Description |
|---|---|
ExecutionDelayThreshold | Time delay between attachment download and execution considered suspicious. |
SuspiciousParentApps | Parent processes expected to rarely spawn child processes (e.g., Mail.app, Preview.app). |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2013-0640 | Adobe Reader and Acrobat | Mapped |
| CVE-2017-11292 | Adobe Flash Player | Mapped |
| CVE-2017-11882 | Microsoft Office | Mapped |
| CVE-2022-41033 | Microsoft Windows COM+ Event System Service | Mapped |
| CVE-2023-2868 | Barracuda Networks Email Security Gateway (ESG) Appliance | Mapped |
| CVE-2025-0411 | 7-Zip 7-Zip | Mapped |
| CVE-2025-33053 | Microsoft Windows | Mapped |