kevmap

TechniquesT1567.003 › AN0789

AN0789 Analytic 0789

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

<p>Processes such as osascript, curl, or office applications sending data to text storage APIs/domains. Defender perspective: anomalous clipboard or file reads by unexpected applications immediately followed by outbound HTTPS requests to pastebin-like services.</p>
Detects
T1567.003 Exfiltration to Text Storage Sites
Part of
DET0284 Detection Strategy for Exfiltration to Text Storage Sites

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:unifiedlogexecution of curl, osascript, or unexpected Office processesDC0032 Process Creation
macos:unifiedlogfile read of sensitive directoriesDC0055 File Access
macos:unifiedlogHTTPS POST requests to pastebin.com or similarDC0078 Network Traffic Flow

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
WatchedAppsProcesses not normally associated with data uploads (e.g., Preview, Calculator).
EntropyThresholdHigh entropy detection to flag encoded or encrypted data exfiltration.