Analysis

  • max time kernel
    149s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/06/2024, 21:54

General

  • Target

    VirusShare_adbd221c643d94913045e5b4d633af10.dll

  • Size

    88KB

  • MD5

    adbd221c643d94913045e5b4d633af10

  • SHA1

    92439678c776ef831f0e33af4e7f2d04b5f3902c

  • SHA256

    08df087a486ed6ae86ae2d2eafe476a400687668eeabad569bd14972dbad3e84

  • SHA512

    0183343909d25c4274245cd1c358a8909a5afc97f5a1d23d34ed798812d57fcfeeac5940dea21f9fb08663f39b5cdf64fed663ec835cbb35fbbe7f635ad18882

  • SSDEEP

    1536:HaQF6r8YXJrswPTbRbyBI5eSpEurA+Gv4n2ZiHbEHFGCJeqsWnBJ:NYZfyBI58MAzQHao4

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 14 IoCs
  • UPX packed file 18 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer Protected Mode 1 TTPs 5 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 16 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_adbd221c643d94913045e5b4d633af10.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1924
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\VirusShare_adbd221c643d94913045e5b4d633af10.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:4656
      • C:\PROGRA~3\rundll32.exe
        C:\PROGRA~3\rundll32.exe C:\PROGRA~3\brigi.dat,FG00
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:1408
        • C:\PROGRA~3\rundll32.exe
          C:\PROGRA~3\rundll32.exe C:\PROGRA~3\brigi.dat,FG01
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:556
        • C:\PROGRA~3\rundll32.exe
          C:\PROGRA~3\rundll32.exe C:\PROGRA~3\brigi.dat,FG02
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          PID:3816
        • C:\PROGRA~3\rundll32.exe
          C:\PROGRA~3\rundll32.exe C:\PROGRA~3\brigi.dat,FG03
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Modifies Internet Explorer Protected Mode
          • Modifies Internet Explorer Protected Mode Banner
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          PID:2636
          • 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:548
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:548 CREDAT:17410 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:4604
        • C:\PROGRA~3\rundll32.exe
          C:\PROGRA~3\rundll32.exe C:\PROGRA~3\brigi.dat,FG04
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4804
        • C:\PROGRA~3\rundll32.exe
          C:\PROGRA~3\rundll32.exe C:\PROGRA~3\brigi.dat,FG06
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3772

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\ProgramData\brigi.dat

          Filesize

          88KB

          MD5

          adbd221c643d94913045e5b4d633af10

          SHA1

          92439678c776ef831f0e33af4e7f2d04b5f3902c

          SHA256

          08df087a486ed6ae86ae2d2eafe476a400687668eeabad569bd14972dbad3e84

          SHA512

          0183343909d25c4274245cd1c358a8909a5afc97f5a1d23d34ed798812d57fcfeeac5940dea21f9fb08663f39b5cdf64fed663ec835cbb35fbbe7f635ad18882

        • C:\ProgramData\rundll32.exe

          Filesize

          60KB

          MD5

          889b99c52a60dd49227c5e485a016679

          SHA1

          8fa889e456aa646a4d0a4349977430ce5fa5e2d7

          SHA256

          6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

          SHA512

          08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

        • memory/556-43-0x0000000002670000-0x000000000269E000-memory.dmp

          Filesize

          184KB

        • memory/1408-61-0x0000000000560000-0x000000000058B000-memory.dmp

          Filesize

          172KB

        • memory/1408-19-0x0000000000560000-0x000000000058B000-memory.dmp

          Filesize

          172KB

        • memory/1408-18-0x00000000001F0000-0x00000000001F1000-memory.dmp

          Filesize

          4KB

        • memory/1408-42-0x0000000000560000-0x000000000058E000-memory.dmp

          Filesize

          184KB

        • memory/1408-60-0x00000000001F0000-0x00000000001F1000-memory.dmp

          Filesize

          4KB

        • memory/2636-45-0x0000000000F10000-0x0000000000F3E000-memory.dmp

          Filesize

          184KB

        • memory/3772-56-0x0000000000FE0000-0x000000000100E000-memory.dmp

          Filesize

          184KB

        • memory/3772-105-0x0000000000FE0000-0x000000000100E000-memory.dmp

          Filesize

          184KB

        • memory/3772-93-0x0000000000FE0000-0x000000000100E000-memory.dmp

          Filesize

          184KB

        • memory/3772-85-0x0000000000FE0000-0x000000000100E000-memory.dmp

          Filesize

          184KB

        • memory/3772-47-0x0000000000FE0000-0x000000000100E000-memory.dmp

          Filesize

          184KB

        • memory/3816-44-0x0000000000600000-0x000000000062E000-memory.dmp

          Filesize

          184KB

        • memory/4656-1-0x00000000014A0000-0x00000000014CB000-memory.dmp

          Filesize

          172KB

        • memory/4656-54-0x00000000014A0000-0x00000000014CB000-memory.dmp

          Filesize

          172KB

        • memory/4656-0-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

          Filesize

          4KB

        • memory/4656-53-0x0000000000FF0000-0x0000000000FF1000-memory.dmp

          Filesize

          4KB

        • memory/4656-9-0x00000000014A0000-0x00000000014CE000-memory.dmp

          Filesize

          184KB

        • memory/4656-41-0x0000000003300000-0x000000000332E000-memory.dmp

          Filesize

          184KB

        • memory/4804-55-0x0000000000FF0000-0x000000000101E000-memory.dmp

          Filesize

          184KB

        • memory/4804-72-0x0000000000FF0000-0x000000000101E000-memory.dmp

          Filesize

          184KB

        • memory/4804-46-0x0000000000FF0000-0x000000000101E000-memory.dmp

          Filesize

          184KB