Analysis

  • max time kernel
    132s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 16:58

General

  • Target

    dbe9d6a2df5f5e5b14626a2453259fafa9b2f03ec6bdc551738d87e67d11d8ee.dll

  • Size

    432KB

  • MD5

    5352d036b03e509c7e04d874fba79730

  • SHA1

    176e1deeac4dfada9ec8f91feea07564e2fa5a4f

  • SHA256

    dbe9d6a2df5f5e5b14626a2453259fafa9b2f03ec6bdc551738d87e67d11d8ee

  • SHA512

    469985a488bb5ddacfc048efcf5f2a8fb5b339175a89cc57a8f1a6fdf0d8130df64458a34c2a83da263c4839021988442486e02ee63bd8dc2dc1a7d984555f02

  • SSDEEP

    12288:eXo450qjYthuCNIm/kqF6a2FjyHIDiayG:3/ku6FjyHemG

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 14 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dbe9d6a2df5f5e5b14626a2453259fafa9b2f03ec6bdc551738d87e67d11d8ee.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4668
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dbe9d6a2df5f5e5b14626a2453259fafa9b2f03ec6bdc551738d87e67d11d8ee.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:380
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:1540
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2292
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:4328
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4328 CREDAT:17410 /prefetch:2
              6⤵
                PID:1788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 380 -s 700
          3⤵
          • Program crash
          PID:4656
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 380 -ip 380
      1⤵
        PID:4732

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

        Filesize

        55KB

        MD5

        ff5e1f27193ce51eec318714ef038bef

        SHA1

        b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

        SHA256

        fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

        SHA512

        c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

        Filesize

        55KB

        MD5

        ff5e1f27193ce51eec318714ef038bef

        SHA1

        b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

        SHA256

        fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

        SHA512

        c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

      • C:\Windows\SysWOW64\rundll32Srv.exe

        Filesize

        55KB

        MD5

        ff5e1f27193ce51eec318714ef038bef

        SHA1

        b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

        SHA256

        fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

        SHA512

        c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

      • C:\Windows\SysWOW64\rundll32Srv.exe

        Filesize

        55KB

        MD5

        ff5e1f27193ce51eec318714ef038bef

        SHA1

        b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

        SHA256

        fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

        SHA512

        c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

      • memory/380-132-0x0000000000000000-mapping.dmp

      • memory/380-141-0x0000000010000000-0x00000000126A4000-memory.dmp

        Filesize

        38.6MB

      • memory/380-142-0x0000000010000000-0x00000000126A4000-memory.dmp

        Filesize

        38.6MB

      • memory/1540-133-0x0000000000000000-mapping.dmp

      • memory/1540-139-0x0000000000400000-0x000000000042E000-memory.dmp

        Filesize

        184KB

      • memory/2292-136-0x0000000000000000-mapping.dmp

      • memory/2292-140-0x0000000000400000-0x000000000042E000-memory.dmp

        Filesize

        184KB