Analysis

  • max time kernel
    93s
  • 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
    10-12-2024 14:00

General

  • Target

    b415a50f457610f1f8dffd439e6ef30414f0813bf7cf5cdd4aaf5afa655f30f0.dll

  • Size

    724KB

  • MD5

    4029621ee8778109c18c28ec49210bc7

  • SHA1

    b1dcadc9b6f95ae4190aaaa729adf9fa181d0dcb

  • SHA256

    b415a50f457610f1f8dffd439e6ef30414f0813bf7cf5cdd4aaf5afa655f30f0

  • SHA512

    f2d06f6088ea3598665ef0c24ea5a92acaaba770780f60315d630b7a53f8429a8a8adf5eabb1421fc80edd16694de1e5e6f944e37146b4c9f0f11b2f3ddde65f

  • SSDEEP

    12288:rzb9rMfc+CKUQyUmjtc4euuzPrs9pGp8hunWoopooK9kwPkQ:rzb1MlCKUQyUmjtczu6Prs9pgWoopooE

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 6 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 WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b415a50f457610f1f8dffd439e6ef30414f0813bf7cf5cdd4aaf5afa655f30f0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4224
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b415a50f457610f1f8dffd439e6ef30414f0813bf7cf5cdd4aaf5afa655f30f0.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1044
      • 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 WriteProcessMemory
        PID:4420
        • 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 WriteProcessMemory
          PID:3596
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3612
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3612 -s 204
                6⤵
                • Program crash
                PID:3008
            • 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:3996
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3996 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4684
            • 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:4808
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4808 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4940
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3612 -ip 3612
      1⤵
        PID:4908

      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

        eefcae01f45b384f9cf7a1366da7ea82

        SHA1

        6d9c91dc8ca8ecea3e3ed1a68aa6ad556ad7fe09

        SHA256

        9d4ef62ead25d8e57f0db8053ed36e7c7f4fcd62c4e3f0f5c034818ad458bc0e

        SHA512

        39d3095ecd84fe6497020ede8f49ca880ba566d751de69bec2f8c8b39a22fd20ef82dde694e18833c8a53aade70e9fa3e3b6aa51ee6dd32f1632105983f369fc

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

        Filesize

        404B

        MD5

        083e5de80529743cca26358551254933

        SHA1

        1a6cc21a9aec154fa1a51678127a4ea082900761

        SHA256

        b8cc2ddc957aba5cfc98cde22ee0ad921179c65d69df9f3d1977bf047dfe1f02

        SHA512

        3bc85d111830cbe7c8e30e0d20d1796d3aaf8aac920faf5a2b4c0b289b265e1eb2d49c5dc766fabd02d48095e5f5c7d58bfc4439d831767c8182ed4f25c8c6c5

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{22A7864A-B6FF-11EF-B9D5-5EA348B38F9D}.dat

        Filesize

        5KB

        MD5

        08190c4a9b3cb9df9cd5b22948996556

        SHA1

        24e18dee773f5e76b31bfcffbe4dfb09580eb038

        SHA256

        f79a3b6c089571c65b9be8d1b5894b0fc7c6caa27279ab511ad46e4bae80febf

        SHA512

        a39e04c67fc6f57a3fd85f75a1c32a02e71e2398895ab60cce544897467a5aa7803618fd868a93e06aad48ff9da2515b9e0df1ccfeff3697fa37e19dc6dba114

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{22A9E87D-B6FF-11EF-B9D5-5EA348B38F9D}.dat

        Filesize

        3KB

        MD5

        6fe91fb721808d5a609746fcce5bb867

        SHA1

        f606610da3ecbc0d032b8c7d1e31e7594dbafdfc

        SHA256

        c3292b81fcd38f35f2a44c3eb6bdaa024c6b25f5af40286147110a76b4d04383

        SHA512

        a6d2b3afd346a98419fa53c740d16a810f41a12574cc019d1d2efe15d273930157da04f12493b166e46cc7b7d78a42df2abec166f27f93de5eeb26e9e51bfb5e

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1FA8.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\rundll32mgr.exe

        Filesize

        65KB

        MD5

        a9ea94ee4a3bb43d4057823b2072dc54

        SHA1

        94ade3c34ec08613daba8a1240586c24f8169794

        SHA256

        7edbb67a880d90e53ec7949c4907f4ccf5596899b98ed8651b01a485a7b06789

        SHA512

        0ae24a452c474a0b67eb17ceb78eabc46aad7f04a249d526cbd1bf25ccc94016133ee6cdd1cf342fa3c8dbff60372d18df56137a6c0303bbaee07f005f930ab5

      • memory/1044-0-0x0000000005000000-0x00000000050BA000-memory.dmp

        Filesize

        744KB

      • memory/3596-23-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3596-19-0x00000000005C0000-0x00000000005C1000-memory.dmp

        Filesize

        4KB

      • memory/3596-20-0x00000000778E2000-0x00000000778E3000-memory.dmp

        Filesize

        4KB

      • memory/3596-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3596-14-0x00000000005B0000-0x00000000005B1000-memory.dmp

        Filesize

        4KB

      • memory/3596-25-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3596-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3596-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3612-18-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

        Filesize

        4KB

      • memory/3612-17-0x0000000000F10000-0x0000000000F11000-memory.dmp

        Filesize

        4KB

      • memory/4420-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4420-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4420-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB