Analysis

  • max time kernel
    178s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 17:58

General

  • Target

    88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe

  • Size

    137KB

  • MD5

    74321f7171898e3575c3f7c2a70bafd0

  • SHA1

    78fdf0740f36206aa119710e75750518dcc9975b

  • SHA256

    88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8

  • SHA512

    4f6436f18c9a13b15524616118ff622c4d93514db505cf96ec7d86d99818ad29cea5152e3b1cf937256b6d28776f40597810b9a9f849aeb4354b891178796049

  • SSDEEP

    3072:sr85C3n9wnXBghhSG1bg8uK6IT3wTEKo/3:k93noxqSGRg3K6kwTif

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 6 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

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

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

  • Modifies Internet Explorer settings 1 TTPs 25 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe
    "C:\Users\Admin\AppData\Local\Temp\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3644
    • C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8Srv.exe
        C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:3392
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3564
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:260
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:260 CREDAT:17410 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:5116

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe

          Filesize

          96KB

          MD5

          9237c86ce60ef2b1ea06d2c99ad38527

          SHA1

          2886b24cbb94183290e4f134a95384112665b5a5

          SHA256

          8582603f884b11652950c7648cd07a23642b70cd3b1e970e97ca538d1312e3cf

          SHA512

          1db714d4ad89702f29998cd945d2831dfab651dd03819889278c56284e14ebcdfdbda73f92e383fc814ea7eb6ca35c3d017305f048277a7da5bc0a8a50e0b5e6

        • C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8.exe

          Filesize

          96KB

          MD5

          9237c86ce60ef2b1ea06d2c99ad38527

          SHA1

          2886b24cbb94183290e4f134a95384112665b5a5

          SHA256

          8582603f884b11652950c7648cd07a23642b70cd3b1e970e97ca538d1312e3cf

          SHA512

          1db714d4ad89702f29998cd945d2831dfab651dd03819889278c56284e14ebcdfdbda73f92e383fc814ea7eb6ca35c3d017305f048277a7da5bc0a8a50e0b5e6

        • C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8Srv.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • C:\Users\Admin\AppData\Local\Temp\3582-490\88ebdfa85953abe08bfa3c876312a40a220f8606ebadcae0c5f05f4a9b0c7fd8Srv.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • memory/2180-143-0x0000000000400000-0x000000000042A000-memory.dmp

          Filesize

          168KB

        • memory/2180-145-0x0000000000400000-0x000000000042A000-memory.dmp

          Filesize

          168KB

        • memory/2180-144-0x0000000000400000-0x000000000042A000-memory.dmp

          Filesize

          168KB

        • memory/3392-140-0x0000000000400000-0x000000000042E000-memory.dmp

          Filesize

          184KB

        • memory/3564-142-0x0000000000400000-0x000000000042E000-memory.dmp

          Filesize

          184KB