Analysis

  • max time kernel
    151s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    20/07/2022, 07:40

General

  • Target

    9e0eaa68ea5bd83f297da656f907a51c.dll

  • Size

    5.0MB

  • MD5

    9e0eaa68ea5bd83f297da656f907a51c

  • SHA1

    0b794a2126670baecaf6bb733b73363a4c036233

  • SHA256

    c1bda90198c908e878987849861f37f1ed61003efeffeb6004524dbfc14d0a61

  • SHA512

    4d9b78a99decfd8e0a2810acfbefca3eace7790524b311210b9e3623ba6a19ab71311ca5609eb12746519d5bd48724bc4fe642443c789f3aab93e8dd6e695428

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Contacts a large (1240) amount of remote hosts 1 TTPs

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

  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies data under HKEY_USERS 24 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e0eaa68ea5bd83f297da656f907a51c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1880
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e0eaa68ea5bd83f297da656f907a51c.dll,#1
      2⤵
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\WINDOWS\mssecsvc.exe
        C:\WINDOWS\mssecsvc.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:1860
  • C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe -m security
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    PID:940

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\WINDOWS\mssecsvc.exe

          Filesize

          3.6MB

          MD5

          3b5be2873bc5ed4a57f5d96ad9420b0b

          SHA1

          505dee8417a21ba74eeaf036b2aaee9fd9992deb

          SHA256

          593c32d9de0642b58e6b87da796b284165cae9f423f3a8fe0119aabf0dab03f0

          SHA512

          3ed23006ad667df8a7e0c6765c03e0a7210e5393bdfaf8e3e564cf8eea0ec076973756eca5cb0482d017e7a3e57d96d596c24110b7178d85e4304df1d8e20069

        • C:\Windows\mssecsvc.exe

          Filesize

          3.6MB

          MD5

          3b5be2873bc5ed4a57f5d96ad9420b0b

          SHA1

          505dee8417a21ba74eeaf036b2aaee9fd9992deb

          SHA256

          593c32d9de0642b58e6b87da796b284165cae9f423f3a8fe0119aabf0dab03f0

          SHA512

          3ed23006ad667df8a7e0c6765c03e0a7210e5393bdfaf8e3e564cf8eea0ec076973756eca5cb0482d017e7a3e57d96d596c24110b7178d85e4304df1d8e20069

        • C:\Windows\mssecsvc.exe

          Filesize

          3.6MB

          MD5

          3b5be2873bc5ed4a57f5d96ad9420b0b

          SHA1

          505dee8417a21ba74eeaf036b2aaee9fd9992deb

          SHA256

          593c32d9de0642b58e6b87da796b284165cae9f423f3a8fe0119aabf0dab03f0

          SHA512

          3ed23006ad667df8a7e0c6765c03e0a7210e5393bdfaf8e3e564cf8eea0ec076973756eca5cb0482d017e7a3e57d96d596c24110b7178d85e4304df1d8e20069

        • memory/1744-55-0x0000000075C41000-0x0000000075C43000-memory.dmp

          Filesize

          8KB