Nebulae Is a backdoor that has been used by Naikon since at least 2020.[1]

ID: S0630
Platforms: Windows
Version: 1.0
Created: 30 June 2021
Last Modified: 15 October 2021

Techniques Used

Domain ID Name Use
Enterprise T1547 .001 Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

Nebulae can achieve persistence through a Registry Run key.[1]

Enterprise T1059 .003 Command and Scripting Interpreter: Windows Command Shell

Nebulae can use CMD to execute a process.[1]

Enterprise T1543 .003 Create or Modify System Process: Windows Service

Nebulae can create a service to establish persistence.[1]

Enterprise T1005 Data from Local System

Nebulae has the capability to upload collected files to C2.[1]

Enterprise T1573 .001 Encrypted Channel: Symmetric Cryptography

Nebulae can use RC4 and XOR to encrypt C2 communications.[1]

Enterprise T1083 File and Directory Discovery

Nebulae can list files and directories on a compromised host.[1]

Enterprise T1574 .002 Hijack Execution Flow: DLL Side-Loading

Nebulae can use DLL side-loading to gain execution.[1]

Enterprise T1070 .004 Indicator Removal: File Deletion

Nebulae has the ability to delete files and directories.[1]

Enterprise T1105 Ingress Tool Transfer

Nebulae can download files from C2.[1]

Enterprise T1036 .004 Masquerading: Masquerade Task or Service

Nebulae has created a service named "Windows Update Agent1" to appear legitimate.[1]

.005 Masquerading: Match Legitimate Name or Location

Nebulae uses functions named StartUserModeBrowserInjection and StopUserModeBrowserInjection indicating that it's trying to imitate chrome_frame_helper.dll.[1]

Enterprise T1106 Native API

Nebulae has the ability to use CreateProcess to execute a process.[1]

Enterprise T1095 Non-Application Layer Protocol

Nebulae can use TCP in C2 communications.[1]

Enterprise T1057 Process Discovery

Nebulae can enumerate processes on a target system.[1]

Enterprise T1082 System Information Discovery

Nebulae can discover logical drive information including the drive type, free space, and volume information.[1]

Groups That Use This Software

ID Name References
G0019 Naikon