WellMail
MITRE
Malware Type:
Other
Other
First seen:
Unknown
Unknown
Last seen:
Unknown
Unknown
Details:
[WellMail](https://attack.mitre.org/software/S0515) is a lightweight malware written in Golang used by [APT29](https://attack.mitre.org/groups/G0016), similar in design and structure to [WellMess](https://attack.mitre.org/software/S0514).(Citation: CISA WellMail July 2020)(Citation: NCSC APT29 July 2020)
Associated Techniques (9)
| ID | ATT&CK | Tactics |
|---|---|---|
| T1005 | Data from Local System | - |
| T1016 | System Network Configuration Discovery | - |
| T1033 | System Owner/User Discovery | - |
| T1095 | Non-Application Layer Protocol | - |
| T1105 | Ingress Tool Transfer | - |
| T1140 | Deobfuscate/Decode Files or Information | - |
| T1560 | Archive Collected Data | - |
| T1571 | Non-Standard Port | - |
| T1573.002 | Asymmetric Cryptography | - |
Used by Actors (1)
Metadata
| ID: | 426 |
| Created: | 13/01/2026 17:48 |
| Updated: | 08/03/2026 16:00 |