Analysis

  • max time kernel
    27s
  • max time network
    29s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24/02/2024, 18:44

General

  • Target
    7z2301-x64.exe
  • Size 1.5MB
  • Sample240224-xdvfysbc28
  • SHA256 26cb6e9f56333682122fafe79dbcdfd51e9f47cc7217dccd29ac6fc33b5598cd
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Loads dropped DLL 6 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7z2301-x64.exe
    "C:\Users\Admin\AppData\Local\Temp\7z2301-x64.exe"
    1⤵
    • Loads dropped DLL
    • Registers COM server for autorun
    • Drops file in Program Files directory
    • Modifies registry class
    PID:2920
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1520

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          7-zip.dll

          • Path \Program Files\7-Zip\7-zip.dll
          • Size 99KB
          • SHA256 f9b4944d3a5536a6f8b4d5db17d903988a3518b22fbee6e3f6019aaf44189b3d
          • MD5 SHA1 SHA512 SSDEEP

          7zFM.exe

          • Path \Program Files\7-Zip\7zFM.exe
          • Size 930KB
          • SHA256 1ea0839c8dc95ad2c060af7d042c40c0daed58ce8e4524c0fba12fd73e4afb74
          • MD5 SHA1 SHA512 SSDEEP