Techniques › T1087.004 › AN1089
AN1089 Analytic 1089
Office Suite · attack.mitre.org · ATT&CK Enterprise v19.2
<p>Bulk enumeration of cloud user email identities through
Get-Recipient, Get-Mailbox, Get-User, or Graph API directory listings by abnormal accounts or suspicious sessions.</p>- Detects
- T1087.004 Cloud Account
- Part of
- DET0386 Cloud Account Enumeration via API, CLI, and Scripting Interfaces
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 |
|---|---|---|
| WinEventLog:PowerShell | CmdletName: Get-Recipient, Get-User | DC0064 Command Execution |
| Microsoft Graph API Logs | users.list, directoryObjects.getByIds | DC0013 User Account 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.
| Field | Description |
|---|---|
CmdletVolume | Tune threshold for recipient/mailbox queries by volume per hour. |
UserAgent | Match known admin consoles and exclude sanctioned tools like MSOL PowerShell. |
SessionContext | Elevate sessions from unmanaged or external endpoints. |