Techniques › T1204 › AN1316
AN1316 Analytic 1316
macOS · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Cause→effect chain: (1) unified logs show application open/click or crash for Safari/Chrome/Office/Preview/archiver, (2) file write/extraction into ~/Downloads, /private/var/folders/* or ~/Library, (3) parent app spawns osascript/bash/zsh/curl/python or opens a quarantined app with Gatekeeper prompts, (4) network egress from child.</p>
- Detects
- T1204 User Execution
- Part of
- DET0478 User Execution – multi-surface behavior chain (documents/links → helper/unpacker → LOLBIN/child → egress)
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 | opened document|clicked link|EXC_BAD_ACCESS|abort|LSQuarantine | DC0038 Application Log Content |
| fs:fileevents | create/write/rename in user-writable paths | DC0039 File Creation |
| macos:osquery | exec | DC0032 Process Creation |
| NSM:Flow | new outbound connection from exploited lineage | DC0082 Network Connection 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 |
|---|---|
TimeWindow | 10–30 minute correlation window. |
HighRiskChildren | osascript, bash, zsh, curl, python, open -a Terminal, installer, tccutil misuse. |
QuarantineSignals | Flag new apps lacking com.apple.quarantine or with quarantine='0081' (downloaded then auto-opened). |
KEV CVEs whose mapped technique this analytic detects
| CVE | Vendor / product | State |
|---|---|---|
| CVE-2023-38831 | RARLAB WinRAR | Mapped |
| CVE-2025-24993 | Microsoft Windows | Mapped |