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Analysis

  • max time kernel
    114s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/12/2024, 07:19

General

  • Target

    d7d81a23b372acd8d2bf2e58e9eabd8431c3e7a34b0fc3cbec149236d0d37bdbN.dll

  • Size

    181KB

  • MD5

    1bdcc3f06648e31a30842fad2e90d430

  • SHA1

    45d2bd5854bd427796cec36e6fa44f10333705b2

  • SHA256

    d7d81a23b372acd8d2bf2e58e9eabd8431c3e7a34b0fc3cbec149236d0d37bdb

  • SHA512

    0afc0c8614bfe64921681401fcf0cb6d97ed01572f69648b0c98646aaa177b43d0900c521da6456ee5ca3b15fc692c230d934b7d4ad0cf7d1cc33a4c1dfa69e6

  • SSDEEP

    3072:nhvKdimeyIEZ1dCJumZF7eOmgyNwV1Hhr768BHQg7bv//MFwFPtj+5X4BIH:gzemdCJfZ0lNK1Hh36YHVvPMFWe

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 7 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 32 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\d7d81a23b372acd8d2bf2e58e9eabd8431c3e7a34b0fc3cbec149236d0d37bdbN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5068
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d7d81a23b372acd8d2bf2e58e9eabd8431c3e7a34b0fc3cbec149236d0d37bdbN.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1912
      • 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:2260
        • 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:4504
          • 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:3916
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3916 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3440
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 668
        3⤵
        • Program crash
        PID:4952
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1912 -ip 1912
    1⤵
      PID:3592

    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

      87f8376b71b1fd35da4b511eff055888

      SHA1

      0c55fba0aa699282bbe4d129dd0ba16d4e377ce9

      SHA256

      a1383ed3b4f8967fb19f5b16bfe41eb3242b296ffc06c1098fbe1d1a04a7003f

      SHA512

      8556ed20a3d9daf8f74b2eceaab6a3773b69d5c9524ba8dbb8af1ad64b2235165e487c41646e357be5906aaa7f0f4c57ff8dc9ea2acc0c87f443d3ad083c9031

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

      Filesize

      404B

      MD5

      cb43d00bddbb3b2340b768d81f62dcf6

      SHA1

      868f45eea01b701ec2bb831cb570ac1795eb753f

      SHA256

      91f13bd76df68da04c5f43a1c2ae476b2c0a12d307624d6cbc5e3d4ec39f365d

      SHA512

      e8caacc60a6a698763a757fb5cee582242612e0f008adab10fceba789b11a9fa273c430256649cc7ada2497c2820a82d53cd08019dcee265bfea5664ae456824

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver29F9.tmp

      Filesize

      15KB

      MD5

      1a545d0052b581fbb2ab4c52133846bc

      SHA1

      62f3266a9b9925cd6d98658b92adec673cbe3dd3

      SHA256

      557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

      SHA512

      bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

    • 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/1912-18-0x0000000010000000-0x000000001008A000-memory.dmp

      Filesize

      552KB

    • memory/1912-0-0x0000000010000000-0x000000001008A000-memory.dmp

      Filesize

      552KB

    • memory/2260-5-0x0000000000580000-0x000000000058F000-memory.dmp

      Filesize

      60KB

    • memory/2260-7-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2260-4-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4504-15-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4504-14-0x0000000000560000-0x0000000000561000-memory.dmp

      Filesize

      4KB

    • memory/4504-13-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB