kevmap

TechniquesT1027.006 › AN0874

AN0874 Analytic 0874

macOS · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Detection of HTML-based downloads via Safari/Chrome that create obfuscated files (e.g., .zip, .app, .js) in user directories and are followed by suspicious executions from preview or launch services.</p>
Detects
T1027.006 HTML Smuggling
Part of
DET0313 Detection Strategy for HTML Smuggling via JavaScript Blob + Dynamic File Drop

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 sourceChannelData component
macos:unifiedlogFile EventsDC0039 File Creation
macos:osqueryprocess_eventsDC0032 Process Creation
gatekeeper/quarantine databaseLaunchServices quarantineDC0059 File Metadata

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.

FieldDescription
QuarantineFlagCheckWhether downloaded file has a quarantine flag and is bypassed via Gatekeeper
BlobKeywordAlertListJavaScript strings that may indicate smuggling: msSaveBlob, download.href, createObjectURL