Resubmissions

19-05-2024 00:45

240519-a36h7ahb7x 10

18-05-2024 22:14

240518-152k5aba88 10

Analysis

  • max time kernel
    73s
  • max time network
    74s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19-05-2024 00:45

General

  • Target

    571382779ee9ae75053802e19dbce87f_JaffaCakes118.exe

  • Size

    3.6MB

  • MD5

    571382779ee9ae75053802e19dbce87f

  • SHA1

    b714032754708a906e552dab7899819c3f2fbf21

  • SHA256

    fab9f33a8734a165a53b818d638ba8f5633ae5429372e7070f8844fcad42e6c3

  • SHA512

    cba9c49ea70889326d4eb7db175c53ed0372adca4618e0df5ab74698a24a349faf3ab2c947b13b117a43c041a49b2755c38b9b552984153de1d86fe79f42733a

  • SSDEEP

    49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H98LpVU:yDqPoBhz1aRxcSUDk36SAEdhvxWa98LY

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Contacts a large (1182) amount of remote hosts 1 TTPs

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

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 26 IoCs
  • Modifies data under HKEY_USERS 24 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\571382779ee9ae75053802e19dbce87f_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\571382779ee9ae75053802e19dbce87f_JaffaCakes118.exe"
    1⤵
    • Drops file in Windows directory
    PID:1660
    • C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      2⤵
      • Executes dropped EXE
      PID:2560
  • C:\Users\Admin\AppData\Local\Temp\571382779ee9ae75053802e19dbce87f_JaffaCakes118.exe
    C:\Users\Admin\AppData\Local\Temp\571382779ee9ae75053802e19dbce87f_JaffaCakes118.exe -m security
    1⤵
    • Drops file in System32 directory
    • Modifies data under HKEY_USERS
    PID:3068
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:2232
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" http://%22c/Users/Admin/Links/Downloads.lnk%22
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:772 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1404

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\tasksche.exe

      Filesize

      3.4MB

      MD5

      df063540c35ea94d8707ff65d9d08b5b

      SHA1

      e9df2b183d2eee1516a69f7741b2f46e5e7a8923

      SHA256

      11107940d5e2d973c2cca94b53da67c1002b1d53460ce1298648769f5501d00e

      SHA512

      3a20ace87752daf1ab3927894419ae46ac7800695482331a57ae5b06caff6cffebba2901341c7e56611a361111a11029626101221b756e7b6173e0dfde260fe2