Analysis

  • max time kernel
    234s
  • max time network
    244s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-05-2024 15:14

General

  • Target

    free_vbuks.zip

  • Size

    41KB

  • MD5

    1df9a18b18332f153918030b7b516615

  • SHA1

    6c42c62696616b72bbfc88a4be4ead57aa7bc503

  • SHA256

    bbd05de19aa2af1455c0494639215898a15286d9b05073b6c4817fe24b2c36fa

  • SHA512

    6382ca9c307d66ab7566acf78b1afd44b18b24d766253e1dc1cb3a3c0be96ecf1f2042d6bd3332d49078ffee571cf98869c1284c1d3e5c1c7dc3e4c64f71af80

  • SSDEEP

    768:hzyVr8GSKL6O3QOXk/0u3wqOghrFCezL1VFJdbq2QTJTw02Q:hGx8DKXE//ZhhCirFi2cwK

Score
1/10

Malware Config

Signatures

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\free_vbuks.zip
    1⤵
      PID:5112
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3988,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8
      1⤵
        PID:1892
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
        1⤵
          PID:4088
        • C:\Program Files\7-Zip\7zFM.exe
          "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\free_vbuks.rar"
          1⤵
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:2696
        • C:\Program Files\7-Zip\7zG.exe
          "C:\Program Files\7-Zip\7zG.exe" x -o"C:\Users\Admin\AppData\Local\Temp\free_vbuks\" -spe -an -ai#7zMap29828:100:7zEvent13470
          1⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:3884
        • C:\Windows\system32\OpenWith.exe
          C:\Windows\system32\OpenWith.exe -Embedding
          1⤵
          • Modifies registry class
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          PID:2364

        Network

        MITRE ATT&CK Matrix

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\free_vbuks\lib 2.zip

          Filesize

          34KB

          MD5

          0a76bd3e26768bba68aca3d210997069

          SHA1

          753690994a18cf58ed0fe3749d16448b763047b8

          SHA256

          9056b87f079861d1b0f041317d6415927d9ffb6498ce2530ff90fda69fa64e78

          SHA512

          14408ea7f44bc365a58d7480fff9ea3b10fa21bfbd3363c6e30b74a4d4121677e20ce1108cce12c203f0760768aee1c1aa69b130e090c409f9a516ea02d70c49