Group5

Group5 is a threat group with a suspected Iranian nexus, though this attribution is not definite. The group has targeted individuals connected to the Syrian opposition via spearphishing and watering holes, normally using Syrian and Iranian themes. Group5 has used two commonly available remote access tools (RATs), njRAT and NanoCore, as well as an Android RAT, DroidJack. [1]

ID: G0043
Version: 1.2
Created: 31 May 2017
Last Modified: 30 March 2020

Techniques Used

Domain ID Name Use
Enterprise T1070 .004 Indicator Removal on Host: File Deletion

Malware used by Group5 is capable of remotely deleting files from victims.[1]

Enterprise T1056 .001 Input Capture: Keylogging

Malware used by Group5 is capable of capturing keystrokes.[1]

Enterprise T1027 Obfuscated Files or Information

Group5 disguised its malicious binaries with several layers of obfuscation, including encrypting the files.[1]

Enterprise T1113 Screen Capture

Malware used by Group5 is capable of watching the victim's screen.[1]

Software

ID Name References Techniques
S0336 NanoCore [1] Audio Capture, Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder, Command and Scripting Interpreter: Visual Basic, Command and Scripting Interpreter: Windows Command Shell, Encrypted Channel: Symmetric Cryptography, Impair Defenses: Disable or Modify Tools, Impair Defenses: Disable or Modify System Firewall, Ingress Tool Transfer, Input Capture: Keylogging, Modify Registry, Obfuscated Files or Information, System Network Configuration Discovery, Video Capture
S0385 njRAT [1] Application Layer Protocol: Web Protocols, Application Window Discovery, Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder, Command and Scripting Interpreter: Windows Command Shell, Command and Scripting Interpreter: PowerShell, Credentials from Password Stores: Credentials from Web Browsers, Data Encoding: Standard Encoding, Data from Local System, Dynamic Resolution: Fast Flux DNS, Exfiltration Over C2 Channel, File and Directory Discovery, Impair Defenses: Disable or Modify System Firewall, Indicator Removal on Host, Ingress Tool Transfer, Input Capture: Keylogging, Modify Registry, Native API, Non-Standard Port, Obfuscated Files or Information, Obfuscated Files or Information: Compile After Delivery, Peripheral Device Discovery, Process Discovery, Query Registry, Remote Services: Remote Desktop Protocol, Remote System Discovery, Replication Through Removable Media, Screen Capture, System Information Discovery, System Owner/User Discovery, Video Capture

References