Analysis

  • max time kernel
    118s
  • max time network
    178s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    16-08-2023 10:17

General

  • Target

    L4220.exe

  • Size

    48KB

  • MD5

    5509231d1d5ed4b76e5802bcca1b5ba0

  • SHA1

    3662ced6a35bdacffb9777dc02d0eed41189e4df

  • SHA256

    ccd8106dadd9c6b283d98a94da817a949f5e9423be6335b616fbbefe5722b02e

  • SHA512

    1ac6180da2ecc89a4c2d34d9b20830f899775cb2e0384caea8c5ad58691d182c033faa797b02294a16cbaadf2508cb511675df8a24f34bcbbd7a189d8840e218

  • SSDEEP

    768:1R6ql/GrTkDnwxDzgXsJBs4lQ/HwUEjikDWXkVsFANrkNEsDDep6PxWEOZC:1RtGrTJqsENfwUEj+mrkNw6Pxx

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\L4220.exe
    "C:\Users\Admin\AppData\Local\Temp\L4220.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4416
    • C:\Users\Public\L4220.exe
      "C:\Users\Public\L4220.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of FindShellTrayWindow
      PID:4668
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2948

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Public\L4220.exe

      Filesize

      48KB

      MD5

      5509231d1d5ed4b76e5802bcca1b5ba0

      SHA1

      3662ced6a35bdacffb9777dc02d0eed41189e4df

      SHA256

      ccd8106dadd9c6b283d98a94da817a949f5e9423be6335b616fbbefe5722b02e

      SHA512

      1ac6180da2ecc89a4c2d34d9b20830f899775cb2e0384caea8c5ad58691d182c033faa797b02294a16cbaadf2508cb511675df8a24f34bcbbd7a189d8840e218

    • C:\Users\Public\L4220.exe

      Filesize

      48KB

      MD5

      5509231d1d5ed4b76e5802bcca1b5ba0

      SHA1

      3662ced6a35bdacffb9777dc02d0eed41189e4df

      SHA256

      ccd8106dadd9c6b283d98a94da817a949f5e9423be6335b616fbbefe5722b02e

      SHA512

      1ac6180da2ecc89a4c2d34d9b20830f899775cb2e0384caea8c5ad58691d182c033faa797b02294a16cbaadf2508cb511675df8a24f34bcbbd7a189d8840e218

    • memory/4668-130-0x00000000024D0000-0x000000000253A000-memory.dmp

      Filesize

      424KB

    • memory/4668-131-0x0000000180000000-0x000000018006E000-memory.dmp

      Filesize

      440KB