Analysis

  • max time kernel
    93s
  • max time network
    145s
  • 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 17:26

General

  • Target

    48aae57de96ff91ead77f712d678b53f42dd341f178ef09eab2b300ef72ebe8cN.dll

  • Size

    435KB

  • MD5

    300da4b40f93a3084c788e6847cdb460

  • SHA1

    7c4c23125f87c549ffaee06ff30dc23d0ffc6348

  • SHA256

    48aae57de96ff91ead77f712d678b53f42dd341f178ef09eab2b300ef72ebe8c

  • SHA512

    36c3bd98eed3a37e48baf27575bf35c375f0d3b7509ee03b85c67b974b712deef10eb0f93c94225f7758e1af3111a65eecabdce9b531490a355b8f2881b9921f

  • SSDEEP

    6144:AmxIbni2hn/hZm8XqyQFAal+BtsnA6C4Xqu4G/LzliJacgQIxr:Axni2h/hZm8XqyQFAu+nGA+xiJ3gQ

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 5 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\48aae57de96ff91ead77f712d678b53f42dd341f178ef09eab2b300ef72ebe8cN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\48aae57de96ff91ead77f712d678b53f42dd341f178ef09eab2b300ef72ebe8cN.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:868
      • 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:1692
        • 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:3828
          • 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:5000
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5000 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:4856
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 868 -s 620
        3⤵
        • Program crash
        PID:3140
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 868 -ip 868
    1⤵
      PID:1132

    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

      9499f9f90d8a74ccd279ed5204468315

      SHA1

      b62255f1fdea13dea8122572d2be0fad75c04b38

      SHA256

      1e5a4b9c3f3733341d1f2041746dda385c32edaf2474508c228fbbba8422900b

      SHA512

      82f20344308f284c141d40f834237702f0392b792769157eba4ae5fb31fec35b1fb87290540a0ff6d23e9a94c0c24fa15486860b7b925d07ae78cfd35185c4a2

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US

      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/868-0-0x0000000000C20000-0x0000000000C94000-memory.dmp

      Filesize

      464KB

    • memory/868-17-0x0000000000C20000-0x0000000000C94000-memory.dmp

      Filesize

      464KB

    • memory/1692-4-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/1692-6-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/1692-5-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/3828-14-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3828-13-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/3828-12-0x0000000001F00000-0x0000000001F01000-memory.dmp

      Filesize

      4KB