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General

  • Target

    https://download.teamviewer.com/download/TeamViewer_Setup_x64.exe?utm_source=google&utm_medium=cpc&utm_campaign=gb%7Cb%7Cpr%7C22%7Cjul%7Ctv-core-download-sn%7Cnew%7Ct0%7C0&utm_content=Download&utm_term=teamviewer+download

  • Sample

    230802-rg86magb4t

Malware Config

Targets

    • Target

      https://download.teamviewer.com/download/TeamViewer_Setup_x64.exe?utm_source=google&utm_medium=cpc&utm_campaign=gb%7Cb%7Cpr%7C22%7Cjul%7Ctv-core-download-sn%7Cnew%7Ct0%7C0&utm_content=Download&utm_term=teamviewer+download

    • Downloads MZ/PE file

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks