Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/07/2022, 07:33

General

  • Target

    6353fcf21cbb20bb16c91910721a60f5.dll

  • Size

    5.0MB

  • MD5

    6353fcf21cbb20bb16c91910721a60f5

  • SHA1

    1316b1c217d57fad4f22bbb5f6328cd4107a465d

  • SHA256

    894e8d4d249a48c088c18adc6b1f6a1fe1073aadd364c99204c813f6018d0805

  • SHA512

    719ff5d6efe6000459c49a051b3609fd750d454ebc0a4d2d5cc6a6d3f06a4461f5d454cfbfd7ae6c717905117d4b0f72d9de989fd1e0b7c28245073c6331ea38

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Contacts a large (2651) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Executes dropped EXE 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6353fcf21cbb20bb16c91910721a60f5.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2160
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6353fcf21cbb20bb16c91910721a60f5.dll,#1
      2⤵
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\WINDOWS\mssecsvc.exe
        C:\WINDOWS\mssecsvc.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:4268
        • C:\WINDOWS\tasksche.exe
          C:\WINDOWS\tasksche.exe /i
          4⤵
          • Executes dropped EXE
          PID:1524
  • C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe -m security
    1⤵
    • Executes dropped EXE
    • Modifies data under HKEY_USERS
    PID:4244

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\WINDOWS\mssecsvc.exe

          Filesize

          3.6MB

          MD5

          011cd6211765992f7959164f2e0cc685

          SHA1

          37466c2a5146f667a1d1df33546aa033b594779c

          SHA256

          096fa38ef308d311074adb67e07866e12cacb9c8f9b52dd3111d8d1054755a70

          SHA512

          ae5dade79ef1d30a9421adafad22a18205e61707babf470a15fc7ac7f6b73ae4cf2768ba48eec2fb27182fcfe22adf8ba04d8dc0e7d15d3b0b292886a10f1f75

        • C:\Windows\mssecsvc.exe

          Filesize

          3.6MB

          MD5

          011cd6211765992f7959164f2e0cc685

          SHA1

          37466c2a5146f667a1d1df33546aa033b594779c

          SHA256

          096fa38ef308d311074adb67e07866e12cacb9c8f9b52dd3111d8d1054755a70

          SHA512

          ae5dade79ef1d30a9421adafad22a18205e61707babf470a15fc7ac7f6b73ae4cf2768ba48eec2fb27182fcfe22adf8ba04d8dc0e7d15d3b0b292886a10f1f75

        • C:\Windows\mssecsvc.exe

          Filesize

          3.6MB

          MD5

          011cd6211765992f7959164f2e0cc685

          SHA1

          37466c2a5146f667a1d1df33546aa033b594779c

          SHA256

          096fa38ef308d311074adb67e07866e12cacb9c8f9b52dd3111d8d1054755a70

          SHA512

          ae5dade79ef1d30a9421adafad22a18205e61707babf470a15fc7ac7f6b73ae4cf2768ba48eec2fb27182fcfe22adf8ba04d8dc0e7d15d3b0b292886a10f1f75

        • C:\Windows\tasksche.exe

          Filesize

          3.4MB

          MD5

          48b7932d08134aa0e4692a1c51f8cf59

          SHA1

          f0f722882801471961a889d21479c7d5b5bb7b2d

          SHA256

          928cace56b782b1c0f5d9ab53472bcea3b2fa0927bdc663dca40ddae2a3edf70

          SHA512

          574a7e885d714d3b92b3547675d21b3b9bc67d1b0acff4ae22765fcf032b702d59f8141cd192af8a8165d73d335dda19a710686a7cade9a377cd14f4433b5621