Gamaredon Group

Gamaredon Group has deployed scripts on compromised systems that automatically scan for interesting documents.^[3]

Gamaredon Group has used modules that automatically upload gathered documents to the C2 server.^[3]

Gamaredon Group has collected files from infected systems and uploaded them to a C2 server.^[3]

Gamaredon Group malware has collected Microsoft Office documents from mapped network drives.^[3]

A Gamaredon Group file stealer has the capability to steal data from newly connected logical volumes on a system, including USB drives.^[1][3]

Gamaredon Group tools decrypted additional payloads from the C2. Gamaredon Group has also decoded base64-encoded source code of a downloader.^[2][3]

A Gamaredon Group file stealer can transfer collected files to a hardcoded C2 server.^[1]

Gamaredon Group macros can scan for Microsoft Word and Excel files to inject with additional malicious macros. Gamaredon Group has also used its backdoors to automatically list interesting files (such as Office documents) found on a system.^[3]

Tools used by Gamaredon Group are capable of downloading and executing additional payloads.^[1][2][3]

Gamaredon Group has used an Outlook VBA module on infected systems to send phishing emails with malicious attachments to other employees within the organization.^[3]

Gamaredon Group has removed security settings for VBA macro execution by changing registry values HKCU\Software\Microsoft\Office\<version>\<product>\Security\VBAWarnings and HKCU\Software\Microsoft\Office\<version>\<product>\Security\AccessVBOM.^[3]

Gamaredon Group malware has used CreateProcess to launch additional malicious components.^[3]

Gamaredon Group has delivered self-extracting 7z archive files within malicious document attachments, and used obfuscated or encrypted scripts.^[3]

Gamaredon Group has inserted malicious macros into existing documents, providing persistence when they are reopened. Gamaredon Group has loaded the group's previously delivered VBA project by relaunching Microsoft Outlook with the /altvba option, once the Application.Startup event is received.^[3]

Gamaredon Group tools have contained an application to check performance of USB flash drives. Gamaredon Group has also used malware to scan for removable drives.^[1][3]

Gamaredon Group's malware can take screenshots of the compromised computer every minute.^[3]

A Gamaredon Group file stealer can gather the victim's computer name and drive serial numbers to send to a C2 server.^[1][2]

A Gamaredon Group file stealer can gather the victim's username to send to a C2 server.^[1]

Gamaredon Group has injected malicious macros into all Word and Excel documents on mapped network drives.^[3]

Gamaredon Group has used DOCX files to download malicious DOT document templates. Gamaredon Group can also inject malicious macros or remote templates into documents already present on compromised systems.^[2][3]

Gamaredon Group has used GitHub repositories for downloaders which will be obtained by the group's .NET executable on the compromised system.^[3]