{"description": "Enterprise techniques used by ANELLDR, ATT&CK software S9027 (v1.0)", "name": "ANELLDR (S9027)", "domain": "enterprise-attack", "versions": {"layer": "4.5", "attack": "19", "navigator": "5.3.2"}, "techniques": [{"techniqueID": "T1622", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can call `ZwSetInformationThread` with the second argument set to\u202f`ThreadHideFromDebugger (0x11)` to evade being debugged.(Citation: Trend Micro Earth Kasha Anel NOV 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1140", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can decrypt encrypted payload data using AES-256-CBC and subsequently execute the payload in memory.(Citation: Trend Micro Earth Kasha Anel NOV 2024)\n", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1083", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can enumerate files in the current directory to search for encrypted payload files.(Citation: Trend Micro Earth Kasha Anel NOV 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1574", "showSubtechniques": true}, {"techniqueID": "T1574.001", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can use DLL sideloading from a legitimate application to initiate execution. (Citation: Trend Micro Earth Kasha Anel NOV 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1106", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can use the `ZwSetInformationThread` to enable debugger evasion.(Citation: Trend Micro Earth Kasha Anel NOV 2024)\n", "score": 1, "color": "#66b1ff", "showSubtechniques": false}, {"techniqueID": "T1027", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) code implements anti-analysis techniques including control flow flattening and Mixed Boolean Arithmetic (MBA).(Citation: Trend Micro Earth Kasha Anel NOV 2024)", "score": 1, "showSubtechniques": true}, {"techniqueID": "T1027.013", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can update its encryption key to AES-256-CBC and re-encrypt its payload, overwriting the original payload file with the newly encrypted data.(Citation: Trend Micro Earth Kasha Anel NOV 2024)\n", "score": 1, "color": "#66b1ff", "showSubtechniques": true}, {"techniqueID": "T1027.016", "comment": "[ANELLDR](https://attack.mitre.org/software/S9027) can use junk code for payload obfuscation.(Citation: Trend Micro Earth Kasha Anel NOV 2024)", "score": 1, "color": "#66b1ff", "showSubtechniques": true}], "gradient": {"colors": ["#ffffff", "#66b1ff"], "minValue": 0, "maxValue": 1}, "legendItems": [{"label": "used by ANELLDR", "color": "#66b1ff"}]}