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Analysis

  • max time kernel
    94s
  • max time network
    112s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2024, 09:14

General

  • Target

    d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388N.dll

  • Size

    96KB

  • MD5

    5a52b60311610893ed60516418324680

  • SHA1

    3bbf7e700878a58e8fae80ceacae96a64740b976

  • SHA256

    d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388

  • SHA512

    e28d1d37c165743c135026a04b748ae91703c4fb37bcfbcba6a3bce5832dbe50f568e7a1f98364444bcf4fb60f68858aee52722a648516fa65147aefd8dd282a

  • SSDEEP

    1536:5ibToqp78CclR6LYRuh0VcULn4WaX6EVvTHX2XI+47qPM0LYp:5ibTTp78CcvIXh0VcUj4We62GIqPM0Ep

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\d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2772
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d3bc6d478fe83ba7eecb168c953da52e1c81c8254a043a1502d80f877d5c1388N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:544
      • 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:920
        • 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:4896
          • 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:3496
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3496 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1872
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 544 -s 608
        3⤵
        • Program crash
        PID:3224
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 544 -ip 544
    1⤵
      PID:8

    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

      73d8dd7eaa8896905e31f1960f51ece1

      SHA1

      164e031603e75d95091220c5ff0d695547f6d3ae

      SHA256

      9ff75ab638fe252bd0d04aea3f0ce38270ffc8df5db9399f9ea45aaef196dddc

      SHA512

      4879585482992d7ea3ee02775b74592b06daab32a63dc7700dd4da40c45a524f3bcfc2beff928a85563f09ad0438be5b3e458bc3d0cd08ad146d416fec014a04

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

      Filesize

      404B

      MD5

      2eecb67c92b70b8fa742f771cdf81a67

      SHA1

      d421bfb871424dbd8872dfbcd2a4db0412e5d34f

      SHA256

      e1a163404b8a8c2b34243474cf4e5c8120eefc43c477c9bd91246540a7246d22

      SHA512

      db67f9bb550e263528c863d0692bbca1fdbf053166d2807ae5462a0eaa17b36f20d805cba624921e1d48e073e963e8a352b52346a6afeef375f48721ee52c9a6

    • 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/544-0-0x000000006D080000-0x000000006D098000-memory.dmp

      Filesize

      96KB

    • memory/544-17-0x000000006D080000-0x000000006D098000-memory.dmp

      Filesize

      96KB

    • memory/920-4-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/920-5-0x0000000000590000-0x000000000059F000-memory.dmp

      Filesize

      60KB

    • memory/920-7-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4896-14-0x0000000000590000-0x0000000000591000-memory.dmp

      Filesize

      4KB

    • memory/4896-13-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4896-15-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB