Analysis

  • max time kernel
    92s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-11-2024 10:54

General

  • Target

    f9a7463309aa2fc7c54bd24872563ac3f3ad1b06f38d534b630fa5c1a06916b3.dll

  • Size

    153KB

  • MD5

    707774c51185e6c76b8594fc4db4e435

  • SHA1

    511f24048f0efa9e8eabc147489d90345bca40d9

  • SHA256

    f9a7463309aa2fc7c54bd24872563ac3f3ad1b06f38d534b630fa5c1a06916b3

  • SHA512

    6de969b35f57c49809068e75b693088ceeaa2ef6c68f1d85e20ac21e96be040141453c2ef0b1cf3210fa151bf34d689a67601ff2aace39256dfba13b3a318132

  • SSDEEP

    3072:oAy8YnjbmrBByW8rKui6f3SchqtQX0ES0l5lW+FH5/M1d7+M1:xy8y1WUqchcM0mHq

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 8 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 30 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9a7463309aa2fc7c54bd24872563ac3f3ad1b06f38d534b630fa5c1a06916b3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4052
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f9a7463309aa2fc7c54bd24872563ac3f3ad1b06f38d534b630fa5c1a06916b3.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4800
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:756
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1416
          • 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:4736
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4736 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:2976
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4800 -s 680
        3⤵
        • Program crash
        PID:2616
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4800 -ip 4800
    1⤵
      PID:948

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      471B

      MD5

      67b3270e9ee2455fec6e20353842018a

      SHA1

      afb768285ecc4fad9cb171c6ec0247e54a645746

      SHA256

      a0e3067884f99355e97dd1979abe971940e233b6d8426ca2f9caedc7f5b25456

      SHA512

      605ae45158f81452bfe383b3a8ec2407ce9c1bcd0d5b1372d13c870569105c764b89abf0a184fa3779770dba24e69b503ba7825026fcfd24fda06cce3ac9f3c5

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

      Filesize

      404B

      MD5

      ccfb78465b4972b2451b834a77390d57

      SHA1

      cc1379d74e0ef94e82c2835a7c7784417743980f

      SHA256

      59c848870d67b6a0a92149ea10530d1dc3c521121bc40b8ea191da528a44f048

      SHA512

      5b408bc9caeaa4e6e69d1052932358aea539e0afd0784c264f45264d048770225d2b757113bae1d2433ee368c9b0560d08c7c55ba550dbf769819c5b76df61b5

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\DomainSuggestions\en-US.1

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Windows\SysWOW64\rundll32Srv.exe

      Filesize

      55KB

      MD5

      ff5e1f27193ce51eec318714ef038bef

      SHA1

      b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

      SHA256

      fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

      SHA512

      c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

    • memory/756-4-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/756-5-0x00000000004D0000-0x00000000004DF000-memory.dmp

      Filesize

      60KB

    • memory/756-7-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/1416-15-0x0000000000570000-0x0000000000571000-memory.dmp

      Filesize

      4KB

    • memory/1416-14-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/1416-16-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/1416-11-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4800-19-0x0000000010000000-0x0000000010083000-memory.dmp

      Filesize

      524KB

    • memory/4800-0-0x0000000010000000-0x0000000010083000-memory.dmp

      Filesize

      524KB