FELIXROOT
ID: S0267
Associated Software: GreyEnergy mini
Type: MALWARE
Platforms: Windows
Version: 2.0
Associated Software Descriptions
| Name | Description |
|---|---|
| GreyEnergy mini | [2] |
Techniques Used
| Domain | ID | Name | Use |
|---|---|---|---|
| Enterprise | T1059 | Command-Line Interface | FELIXROOT opens a remote shell to execute commands on the infected system. [1] [2] |
| Enterprise | T1043 | Commonly Used Port | FELIXROOT uses Port Numbers 443, 8443, and 8080 for C2 communications. [1] [2] |
| Enterprise | T1022 | Data Encrypted | FELIXROOT encrypts collected data with AES and Base64 and then sends it to the C2 server. [1] |
| Enterprise | T1107 | File Deletion | FELIXROOT deletes the .LNK file from the startup directory as well as the dropper components. [1] |
| Enterprise | T1112 | Modify Registry |
FELIXROOT deletes the Registry key HKCU\Software\Classes\Applications\rundll32.exe\shell\open.
[1]
|
| Enterprise | T1027 | Obfuscated Files or Information | FELIXROOT encrypts strings in the backdoor using a custom XOR algorithm. [1] [2] |
| Enterprise | T1057 | Process Discovery | FELIXROOT collects a list of running processes. [2] |
| Enterprise | T1012 | Query Registry | FELIXROOT queries the Registry for specific keys for potential privilege escalation and proxy information. FELIXROOT has also used WMI to query the Windows Registry. [1] [2] |
| Enterprise | T1060 | Registry Run Keys / Startup Folder | FELIXROOT adds a shortcut file to the startup folder for persistence. [2] |
| Enterprise | T1105 | Remote File Copy | FELIXROOT downloads and uploads files to and from the victim’s machine. [1] [2] |
| Enterprise | T1085 | Rundll32 | FELIXROOT uses Rundll32 for executing the dropper program. [1] [2] |
| Enterprise | T1064 | Scripting | FELIXROOT executes batch scripts on the victim’s machine. [1] |
| Enterprise | T1063 | Security Software Discovery | FELIXROOT checks for installed security software like antivirus and firewall. [2] |
| Enterprise | T1023 | Shortcut Modification | FELIXROOT creates a .LNK file for persistence. [2] |
| Enterprise | T1071 | Standard Application Layer Protocol | FELIXROOT uses HTTP and HTTPS to communicate with the C2 server. [1] [2] |
| Enterprise | T1082 | System Information Discovery | FELIXROOT collects the victim’s computer name, processor architecture, OS version, volume serial number, and system type. [1] [2] |
| Enterprise | T1016 | System Network Configuration Discovery | FELIXROOT collects information about the network including the IP address and DHCP server. [2] |
| Enterprise | T1033 | System Owner/User Discovery | FELIXROOT collects the username from the victim’s machine. [1] [2] |
| Enterprise | T1124 | System Time Discovery | FELIXROOT gathers the time zone information from the victim’s machine. [2] |
| Enterprise | T1047 | Windows Management Instrumentation | FELIXROOT uses WMI to query the Windows Registry. [2] |