Email Collection: Local Email Collection (T1114.001)

Tactic: Collection · Platforms: Windows

The interactive view maps 1 detection strategy, 2 mitigations, 8 threat groups, 11 software entries, 1 campaign to this technique, alongside D3FEND countermeasures and data-component coverage.

Sub-technique of Email Collection (T1114).

Overview

Adversaries may target user email on local systems to collect sensitive information. Files containing email data can be acquired from a user’s local system, such as Outlook storage or cache files.

Outlook stores data locally in offline data files with an extension of .ost. Outlook 2010 and later supports .ost file sizes up to 50GB, while earlier versions of Outlook support up to 20GB. IMAP accounts in Outlook 2013 (and earlier) and POP accounts use Outlook Data Files (.pst) as opposed to .ost, whereas IMAP accounts in Outlook 2016 (and later) use .ost files. Both types of Outlook data files are typically stored in `C:\Users\<username>\Documents\Outlook Files` or `C:\Users\<username>\AppData\Local\Microsoft\Outlook`.

Explore

• Open T1114.001 in the interactive ATT&CK matrix
• ATT&CK Intelligence View guide
• Official MITRE ATT&CK entry for T1114.001
• Sigma detection rules for MITRE ATT&CK
• Built by Shahrukh Khan