Crimson
Crimson is a remote access Trojan that has been used by Transparent Tribe since at least 2016.[1][2]
Associated Software Descriptions
| Name | Description |
|---|---|
| MSIL/Crimson |
Techniques Used
| Domain | ID | Name | Use | |
|---|---|---|---|---|
| Enterprise | T1071 | .001 | Application Layer Protocol: Web Protocols |
Crimson can use a HTTP GET request to download its final payload.[1] |
| Enterprise | T1123 | Audio Capture |
Crimson can perform audio surveillance using microphones.[2] |
|
| Enterprise | T1547 | .001 | Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder | |
| Enterprise | T1059 | .003 | Command and Scripting Interpreter: Windows Command Shell |
Crimson has the ability to execute commands with the COMSPEC environment variable.[2] |
| Enterprise | T1555 | .003 | Credentials from Password Stores: Credentials from Web Browsers |
Crimson contains a module to steal credentials from Web browsers on the victim machine.[1][2] |
| Enterprise | T1025 | Data from Removable Media |
Crimson contains a module to collect data from removable drives.[1][2] |
|
| Enterprise | T1140 | Deobfuscate/Decode Files or Information |
Crimson can decode its encoded PE file prior to execution.[1] |
|
| Enterprise | T1114 | .001 | Email Collection: Local Email Collection |
Crimson contains a command to collect and exfiltrate emails from Outlook.[1] |
| Enterprise | T1083 | File and Directory Discovery |
Crimson contains commands to list files and directories, as well as search for files matching certain extensions from a defined list.[1][2] |
|
| Enterprise | T1070 | .004 | Indicator Removal on Host: File Deletion |
Crimson has the ability to delete files from a compromised host.[1][2] |
| Enterprise | T1105 | Ingress Tool Transfer |
Crimson contains a command to retrieve files from its C2 server.[1][2] |
|
| Enterprise | T1056 | .001 | Input Capture: Keylogging |
Crimson can use a module to perform keylogging on compromised hosts.[1][2] |
| Enterprise | T1112 | Modify Registry |
Crimson can set a Registry key to determine how long it has been installed and possibly to indicate the version number.[1] |
|
| Enterprise | T1095 | Non-Application Layer Protocol | ||
| Enterprise | T1120 | Peripheral Device Discovery |
Crimson has the ability to discover pluggable/removable drives to extract files from.[1][2] |
|
| Enterprise | T1057 | Process Discovery | ||
| Enterprise | T1012 | Query Registry |
Crimson can check the Registry for the presence of |
|
| Enterprise | T1091 | Replication Through Removable Media |
Crimson can spread across systems by infecting removable media.[2] |
|
| Enterprise | T1113 | Screen Capture |
Crimson contains a command to perform screen captures.[1][2] |
|
| Enterprise | T1518 | .001 | Software Discovery: Security Software Discovery |
Crimson contains a command to collect information about anti-virus software on the victim.[1][2] |
| Enterprise | T1082 | System Information Discovery |
Crimson contains a command to collect the victim PC name, disk drive information, and operating system.[1][2] |
|
| Enterprise | T1614 | System Location Discovery |
Crimson can identify the geographical location of a victim host.[2] |
|
| Enterprise | T1016 | System Network Configuration Discovery |
Crimson contains a command to collect the victim MAC address and LAN IP.[1][2] |
|
| Enterprise | T1033 | System Owner/User Discovery | ||
| Enterprise | T1124 | System Time Discovery |
Crimson has the ability to determine the date and time on a compromised host.[2] |
|
| Enterprise | T1125 | Video Capture | ||
| Enterprise | T1497 | .003 | Virtualization/Sandbox Evasion: Time Based Evasion |
Crimson can determine when it has been installed on a host for at least 15 days before downloading the final payload.[1] |
Groups That Use This Software
| ID | Name | References |
|---|---|---|
| G0134 | Transparent Tribe |