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Analysis

  • max time kernel
    94s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/01/2025, 23:43

General

  • Target

    8072c1e130c2cc70877331eac1ab2ee5d1f65b826bc51ba41aade02f0b666745N.dll

  • Size

    2.5MB

  • MD5

    d009bf25ec275e69f65a367ce5414860

  • SHA1

    3dabd84295b179c8d33e149f0c99a11aa1d23ed4

  • SHA256

    8072c1e130c2cc70877331eac1ab2ee5d1f65b826bc51ba41aade02f0b666745

  • SHA512

    eb3c2cf68c3cf8cd04f6ce21041af1b384753b7c8fa0ecf3125846a25bb75c95ff0c3820e66d68bdcab2825f2bf804a8548c5369407540089d30b35b79438be3

  • SSDEEP

    49152:BU3U+ZYmxjpv7x4GFM/+b8dTMNh9Wr73h7NXSWEqNJO5hYTVMCRisKEZePsw:BiU2YmxjpDx4Zo8dYNh9q73h7NXYkRib

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 14 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\8072c1e130c2cc70877331eac1ab2ee5d1f65b826bc51ba41aade02f0b666745N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4980
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\8072c1e130c2cc70877331eac1ab2ee5d1f65b826bc51ba41aade02f0b666745N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3972
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4460
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:3568
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3480
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 204
                6⤵
                • Program crash
                PID:3484
            • 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:1992
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1992 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3552
            • 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:1824
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1824 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 3972 -s 624
          3⤵
          • Program crash
          PID:2188
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3972 -ip 3972
      1⤵
        PID:4736
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3480 -ip 3480
        1⤵
          PID:4876

        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

          30f59b20e935520badc298242cb4cff1

          SHA1

          00622b2054eb148a8459c2ccd0b22606c2d5c7f6

          SHA256

          4a981d199e551f2b8c8fa22f0e3fbc264e876e5ed243d83331b2a6083a753e3c

          SHA512

          f22ca09eb3266cee3f363e4f3f955745382679d136d61e7c27f81081cd77efa5f82f82220526928f73049e692b7c060f64032dfae0f967c579c6e6acfd2e8d21

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

          Filesize

          404B

          MD5

          e92143b0b077f20ee2e4bc5b44a353ae

          SHA1

          d8b19e35fc308cf12c196219878f63e16e19de6d

          SHA256

          65b53560c063272144e4cb007083262507483d65d1033d52c8e00f2a824521ad

          SHA512

          f602eac929c10863a969cbdc4aa0d93ebf6cedf2acfa6b2b1e4b4680e7601ccd318d0a41333238353ff7fe0a8abc74595bdae3e9b3e1aaaf1c70b616aceacc04

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

          Filesize

          404B

          MD5

          05829e67facec4eca9351c49fe217432

          SHA1

          1d564becde6865b31bc2107019a68cb633bd7963

          SHA256

          f010dec7312e00c2dcd0c8fe4791dbf954a90a2737fff3dec1d99bf40bce58d3

          SHA512

          3faad0decd3bee2f1ee44c96ef685301fd00e81ecddbdbf8d771f4e89789dc68340e9d8417528f87e7e01530067b042b17555d4280c768d53eab24305a9ac985

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{31C6907D-C89A-11EF-A4B7-DEEFF298442C}.dat

          Filesize

          3KB

          MD5

          98af428351f54d8c7410cc36f0ab9d37

          SHA1

          e37b5da96e7bc254d73e9d6ff3dccab537add156

          SHA256

          df1b96b5320cefb952a86eacc860818fa32a2b5c3e7dfe2317d88c2806fc7f9c

          SHA512

          d769deeec88158c199bcecff62e0f28bc3730f5824e76d04ccf11c1da7e9a9459053c4380d531c63b15622edc37896e5ddd4384b2fdcbf53932d9bf5824850e4

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{31C8F33E-C89A-11EF-A4B7-DEEFF298442C}.dat

          Filesize

          5KB

          MD5

          1e7a863421e7fcc0d0a9bf65b4975501

          SHA1

          cdf672c7c3dd40d4b41e68ae5ef3974de7906f40

          SHA256

          cb3ac4fa53b2538346f8c53fe924b80e36969ee3e783601995bb1565fcece877

          SHA512

          d4b4cb6c033a0b5eb7dc15f8fc6252af5afc2510505940f7d89192999c72034217a1731187a9dd890971a01da89e49e2fa76f53283e4b74220e85c2e0f624143

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver12E8.tmp

          Filesize

          15KB

          MD5

          1a545d0052b581fbb2ab4c52133846bc

          SHA1

          62f3266a9b9925cd6d98658b92adec673cbe3dd3

          SHA256

          557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

          SHA512

          bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\P2UT3MS5\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Windows\SysWOW64\rundll32mgr.exe

          Filesize

          356KB

          MD5

          d1654649c5df79cd1df557b1f68c8b2d

          SHA1

          f97eefb7de778ed3a2314dd1a679e79b80d1703f

          SHA256

          954818df89575ea6024b38b35882aea05f19282dea9f19ae42cc5a9769561f77

          SHA512

          0463cb66da8559b2cc7b76928e32a0e74ecfdc939bbbf93d5cca4015aafb0b19b9a4b1633717384fe01333a75d7afa2ba8bda92221c7a1e9a70d087adff0e2cf

        • memory/3480-36-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

          Filesize

          4KB

        • memory/3480-35-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

          Filesize

          4KB

        • memory/3568-30-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3568-43-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3568-27-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3568-31-0x00000000001D0000-0x00000000001D1000-memory.dmp

          Filesize

          4KB

        • memory/3568-33-0x0000000077582000-0x0000000077583000-memory.dmp

          Filesize

          4KB

        • memory/3568-32-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3568-44-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3568-22-0x0000000000400000-0x0000000000477000-memory.dmp

          Filesize

          476KB

        • memory/3568-38-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/3568-40-0x0000000000400000-0x0000000000477000-memory.dmp

          Filesize

          476KB

        • memory/3568-39-0x0000000077582000-0x0000000077583000-memory.dmp

          Filesize

          4KB

        • memory/3972-37-0x0000000008000000-0x0000000008294000-memory.dmp

          Filesize

          2.6MB

        • memory/3972-1-0x0000000008000000-0x0000000008294000-memory.dmp

          Filesize

          2.6MB

        • memory/4460-15-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-18-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-10-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-11-0x0000000002CB0000-0x0000000002CB1000-memory.dmp

          Filesize

          4KB

        • memory/4460-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4460-5-0x0000000000400000-0x0000000000477000-memory.dmp

          Filesize

          476KB