Cервис управления информационной безопасностью
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MITRE ATT&CK - Инструмент CozyCar
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CozyCar
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CozyCar

CozyCar is malware that was used by APT29 from 2010 to 2015. It is a modular malware platform, and its backdoor component can be instructed to download and execute a variety of modules with different functionality. (Citation: F-Secure The Dukes)
ID: S0046
Type: MALWARE
Platforms: Windows
Version: 1.3
Created: 31 May 2017
Last Modified: 11 Apr 2024

Techniques Used
Domain ID Name Use
Enterprise T1071 .001 Application Layer Protocol: Web Protocols

CozyCar's main method of communicating with its C2 servers is using HTTP or HTTPS.(Citation: F-Secure CozyDuke)
Enterprise T1547 .001 Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder

One persistence mechanism used by CozyCar is to set itself to be executed at system startup by adding a Registry value under one of the following Registry keys:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
HKCU\Software\Microsoft\Windows\CurrentVersion\Run\
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run(Citation: F-Secure CozyDuke)
Enterprise T1059 .003 Command and Scripting Interpreter: Windows Command Shell

A module in CozyCar allows arbitrary commands to be executed by invoking C:\Windows\System32\cmd.exe.(Citation: F-Secure CozyDuke)
Enterprise T1543 .003 Create or Modify System Process: Windows Service

One persistence mechanism used by CozyCar is to register itself as a Windows service.(Citation: F-Secure CozyDuke)
Enterprise T1036 .003 Masquerading: Rename System Utilities

The CozyCar dropper has masqueraded a copy of the infected system's rundll32.exe executable that was moved to the malware's install directory and renamed according to a predefined configuration file.(Citation: F-Secure CozyDuke)
Enterprise T1003 .001 OS Credential Dumping: LSASS Memory

CozyCar has executed Mimikatz to harvest stored credentials from the victim and further victim penetration.(Citation: F-Secure CozyDuke)
.002 OS Credential Dumping: Security Account Manager

Password stealer and NTLM stealer modules in CozyCar harvest stored credentials from the victim, including credentials used as part of Windows NTLM user authentication.(Citation: F-Secure CozyDuke)

Enterprise T1027 .013 Obfuscated Files or Information: Encrypted/Encoded File

The payload of CozyCar is encrypted with simple XOR with a rotating key. The CozyCar configuration file has been encrypted with RC4 keys.(Citation: F-Secure CozyDuke)
Enterprise T1053 .005 Scheduled Task/Job: Scheduled Task

One persistence mechanism used by CozyCar is to register itself as a scheduled task.(Citation: F-Secure CozyDuke)
Enterprise T1518 .001 Software Discovery: Security Software Discovery

The main CozyCar dropper checks whether the victim has an anti-virus product installed. If the installed product is on a predetermined list, the dropper will exit.(Citation: F-Secure CozyDuke)
Enterprise T1218 .011 System Binary Proxy Execution: Rundll32

The CozyCar dropper copies the system file rundll32.exe to the install location for the malware, then uses the copy of rundll32.exe to load and execute the main CozyCar component.(Citation: F-Secure CozyDuke)
Enterprise T1102 .002 Web Service: Bidirectional Communication

CozyCar uses Twitter as a backup C2 channel to Twitter accounts specified in its configuration file.(Citation: F-Secure CozyDuke)

Groups That Use This Software
ID Name References
G0016 APT29

(Citation: F-Secure The Dukes) (Citation: Secureworks IRON HEMLOCK Profile)

References

  1. F-Secure Labs. (2015, September 17). The Dukes: 7 years of Russian cyberespionage. Retrieved December 10, 2015.
  2. F-Secure Labs. (2015, April 22). CozyDuke: Malware Analysis. Retrieved December 10, 2015.
  3. Secureworks CTU. (n.d.). IRON HEMLOCK. Retrieved February 22, 2022.
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