{"description": "Enterprise techniques used by WellMail, ATT&CK software S0515 (v1.0)", "name": "WellMail (S0515)", "domain": "enterprise-attack", "versions": {"layer": "4.5", "attack": "17", "navigator": "5.1.0"}, "techniques": [{"techniqueID": "T1560", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can archive files on the compromised host.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1005", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can exfiltrate files from the victim machine.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1140", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can decompress scripts received from C2.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1573", "showSubtechniques": true}, {"techniqueID": "T1573.002", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can use hard coded client and certificate authority certificates to communicate with C2 over mutual TLS.(Citation: CISA WellMail July 2020)(Citation: NCSC APT29 July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1105", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can receive data and executable scripts from C2.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1095", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can use TCP for C2 communications.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1571", "comment": "[WellMail](https://attack.mitre.org/software/S0515) has been observed using TCP port 25, without using SMTP, to leverage an open port for secure command and control communications.(Citation: CISA WellMail July 2020)(Citation: NCSC APT29 July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1016", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can identify the IP address of the victim system.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1033", "comment": "[WellMail](https://attack.mitre.org/software/S0515) can identify the current username on the victim system.(Citation: CISA WellMail July 2020)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}], "gradient": {"colors": ["#ffffff", "#66b1ff"], "minValue": 0, "maxValue": 1}, "legendItems": [{"label": "used by WellMail", "color": "#66b1ff"}]}