Analysis

  • max time kernel
    93s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 04:27

General

  • Target

    1247063398e39ec53d3f4330de8f5ce4d040ed5380bc8ba7d18ae4972f766d11N.dll

  • Size

    152KB

  • MD5

    efc18cb8a39c8bdda2c85e8131d490c0

  • SHA1

    3d86a7ff540daa5695101de92f4d3f62e46cd50c

  • SHA256

    1247063398e39ec53d3f4330de8f5ce4d040ed5380bc8ba7d18ae4972f766d11

  • SHA512

    ebf25c3dc222eed6d57e1e0caa46fafd2cd029f57aecf97dad74653d292cdca729e70d6b2dc63f0265633156b93634e5e5bd45a1780f7bd99c0245f0ab939b22

  • SSDEEP

    3072:Cn4cV8gf2u41Z5tKlwjndw2KqUIRmuoF6A:I4y8gOl2KdEqUCmuosA

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 10 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 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 51 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\1247063398e39ec53d3f4330de8f5ce4d040ed5380bc8ba7d18ae4972f766d11N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2632
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1247063398e39ec53d3f4330de8f5ce4d040ed5380bc8ba7d18ae4972f766d11N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4124
      • 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:3924
        • 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:3388
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4924
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 208
                6⤵
                • Program crash
                PID:3160
            • 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:636
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:636 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4436
            • 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:4080
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4080 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:812
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4924 -ip 4924
      1⤵
        PID:312

      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

        cda3a1245093d86501ad9761f10320fa

        SHA1

        9ff6b95b0a72732f8afbd9504fa640bec134b498

        SHA256

        eb60e5aa4327f06e072f6b97c6a52532aa55d5a5dc53e1d48ecced85da6214dc

        SHA512

        51abd474d484588dd1cdc5580cf28d6a5d0481a4488f1f5b8a491c4f30ecaf5ba8cffa9c9ac696358d6725c6e290e8d28d2e3984d3d55f0ae496a65bc4142a1d

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

        Filesize

        404B

        MD5

        4e96491c1961fa066a58295418052508

        SHA1

        8ae1797410c2e06cc6389ea31f98a2b30911fe8b

        SHA256

        b3c47aed2914b31b9cfa52a74d01e690eef88918422d15a438605064b90e6c3f

        SHA512

        eec70ba771f77628c2509e14d33426c4223e46c8f75fcef39a8821accff3e28bdd9efc010239e038f602c1747c8e95329da7977260c40c010930d1d8681d9f17

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

        Filesize

        404B

        MD5

        032dc303867213f4f546e32ff297d98a

        SHA1

        36ea3fbcc4822aefcfeb07ab1a503afc5d98fe60

        SHA256

        3d48f070f6726efa6f805af1790aefda230ef15515e9a7f554da9db651c64e58

        SHA512

        367f50afe38dfddfecf4bcf6551c201ab2d28d77e30ef526469d3f487481e7978b7246213ed197de5a46b7bea61bcba1e66aefbf9bc2480c9c27318ac89f3882

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{058E8F31-BB66-11EF-91C3-FAA11E730504}.dat

        Filesize

        5KB

        MD5

        e2a0fbf285dd10033ea96b0675197fb2

        SHA1

        0f6ca5c6b5f4ae6b5088768f7ab2e83af27ffe14

        SHA256

        594545c50e8bb02c55b08c58e7f895836b5e853d4e72e7895d2d48c2920811fb

        SHA512

        b6264a6e70db3ae83953e36fac8b90caa60ac7e7a217fd1ab9b67fa46840b5c6b6b56b9609d0212b0fc8bd09ed029637778ee1281b638e24c343e81aad5ff359

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{0590F1F3-BB66-11EF-91C3-FAA11E730504}.dat

        Filesize

        4KB

        MD5

        dc3786d8dbb4e9f121fb4a93d7f046df

        SHA1

        230fdf0bae192cf17a2c7fe34a5789dc4a18a9c2

        SHA256

        8ee9b3a1640919c320bfad1f56e8d5aaf672afa91c3cddbd530ad5297cacd88c

        SHA512

        6a7de5bbe20772f76892257422b8774050b8f973cb2f95122ef4ba8bd1cbfed8679566c78e1c2694eaf770b3f96349eb35bab7a875f170501da06a8f17473b70

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1C3D.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XH3Z2ZON\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        60KB

        MD5

        94f2f6ffbba8e7644668b51b39983916

        SHA1

        63357bbdf90101969117983dbc0d4ed0e713c4d7

        SHA256

        ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed

        SHA512

        d04430ceac70c6fa71d07d9ee82ac2bb5e6c0641d5c9e7e5a3ed39d342e8b198f367676516a55f0653e0b88635a027b9ad220e223145b8be8df281bb6faf7156

      • memory/3388-29-0x0000000077E12000-0x0000000077E13000-memory.dmp

        Filesize

        4KB

      • memory/3388-28-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3388-38-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3388-37-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3388-26-0x00000000001E0000-0x00000000001E1000-memory.dmp

        Filesize

        4KB

      • memory/3388-33-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/3388-34-0x0000000077E12000-0x0000000077E13000-memory.dmp

        Filesize

        4KB

      • memory/3924-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3924-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3924-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3924-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3924-10-0x0000000000A40000-0x0000000000A41000-memory.dmp

        Filesize

        4KB

      • memory/3924-11-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3924-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3924-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4124-0-0x0000000010000000-0x0000000010027000-memory.dmp

        Filesize

        156KB

      • memory/4924-32-0x00000000002C0000-0x00000000002C1000-memory.dmp

        Filesize

        4KB

      • memory/4924-31-0x00000000002E0000-0x00000000002E1000-memory.dmp

        Filesize

        4KB