ObliqueRAT is a remote access trojan, similar to Crimson, that has been in use by Transparent Tribe since at least 2020.[1][2]

ID: S0644
Platforms: Windows
Version: 1.0
Created: 08 September 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

ObliqueRAT can gain persistence by a creating a shortcut in the infected user's Startup directory.[1]

Enterprise T1025 Data from Removable Media

ObliqueRAT has the ability to extract data from removable devices connected to the endpoint.[1]

Enterprise T1074 .001 Data Staged: Local Data Staging

ObliqueRAT can copy specific files, webcam captures, and screenshots to local directories.[1]

Enterprise T1030 Data Transfer Size Limits

ObliqueRAT can break large files of interest into smaller chunks to prepare them for exfiltration.[1]

Enterprise T1083 File and Directory Discovery

ObliqueRAT has the ability to recursively enumerate files on an infected endpoint.[1]

Enterprise T1027 .003 Obfuscated Files or Information: Steganography

ObliqueRAT can hide its payload in BMP images hosted on compromised websites.[1]

Enterprise T1120 Peripheral Device Discovery

ObliqueRAT can discover pluggable/removable drives to extract files from.[1]

Enterprise T1057 Process Discovery

ObliqueRAT can check for blocklisted process names on a compromised host.[1]

Enterprise T1113 Screen Capture

ObliqueRAT can capture a screenshot of the current screen.[1]

Enterprise T1082 System Information Discovery

ObliqueRAT has the ability to check for blocklisted computer names on infected endpoints.[1]

Enterprise T1033 System Owner/User Discovery

ObliqueRAT can check for blocklisted usernames on infected endpoints.[1]

Enterprise T1204 .001 User Execution: Malicious Link

ObliqueRAT has gained execution on targeted systems through luring users to click on links to malicious URLs.[1][2]

Enterprise T1125 Video Capture

ObliqueRAT can capture images from webcams on compromised hosts.[1]

Enterprise T1497 .001 Virtualization/Sandbox Evasion: System Checks

ObliqueRAT can halt execution if it identifies processes belonging to virtual machine software or analysis tools.[1]

Groups That Use This Software

ID Name References
G0134 Transparent Tribe