Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2024 20:11

General

  • Target

    1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122.dll

  • Size

    500KB

  • MD5

    d274670f913543a1596c9ca564938ff0

  • SHA1

    67e4bcf0912dea8125833f7aba776fba90d4186e

  • SHA256

    1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122

  • SHA512

    8a384d715b7afb48be50ffa1cc4ea833417f051702515757b8cd8e945785ef1a5f919b3dc789da84f7ea740ee3127f87c189989959ef82f0f38ba6bf2c8ef58c

  • SSDEEP

    12288:Ph8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNoMlYXN:P8F+Pzr/Hfp4MIYwZckMQmblsN

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 4 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 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 WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4476
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4504
      • 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:2520
        • 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:4136
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:392
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 204
                6⤵
                • Program crash
                PID:2136
            • 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:2644
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2644 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3132
            • 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:3028
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3028 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 392 -ip 392
      1⤵
        PID:4528

      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

        1f183ce23aead67e14c3472b43109763

        SHA1

        92e55d3557a1fdd6c2eab6282dee7d13134ae9db

        SHA256

        657a1895a158bfb57dce6059274bd063c0273a2421c903bc8978fd3250be3964

        SHA512

        5be76dbf70581a4a703d68ebe460875ef60373f52f39eaf4d65acd3b743d2f382b341dde170349f7001453041f8470091752c80f627633667344b4859848d2c5

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

        Filesize

        404B

        MD5

        0d44522d1b8732018efef869f1975293

        SHA1

        c2876c5584c94b0e177bf1d8d53fda7ada728f46

        SHA256

        a52889faff32d052d534fc4f001829c6df03bc2b1ca70f9da10d2e245083ef3d

        SHA512

        f7251c35c58b2dc21a9ae81b9229755a9c23a6c217c01a938117487ba0cc4aeb7b02d12330e13a36187e50aaf9dc0e4efad8c2255667256f700980ecc8addc8e

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

        Filesize

        404B

        MD5

        6df8ebab2adebd4f2ceb76218f769623

        SHA1

        1f0107b4ae3561ae86317afef53d8b4abaf87507

        SHA256

        ef349df8860911a9629d1a48c0fa386c82d39fe74d662bd650787ccc51004cd5

        SHA512

        19e207384d649ee37b7d83d49f8f90d2a0b10f5ad1fea95956f4365d81858217440aa775cba0aef187d16a0feef3d19f5abc26643ad7c8a6e8466c6ece55328c

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9261BAEB-B5A0-11EF-91C3-7ECF469E42CC}.dat

        Filesize

        3KB

        MD5

        ba3fd044c3fe46c7aac89cd4c191bfa7

        SHA1

        d0461dfad538a7668151bcc228b21f6d8ad03fb1

        SHA256

        62a190feaf61952bc5111267e780945d125a6df9e0265176e8e892b6381ec105

        SHA512

        34a7d0988fb6b16dd273d2582d98cea0a043b75df7b619c60a4f9e2244418e726026968f0c7bb71bfd4b676f4db24883ea67324bdc7bfd44213d92a77b84bb88

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{92641C42-B5A0-11EF-91C3-7ECF469E42CC}.dat

        Filesize

        5KB

        MD5

        a477a4f2eb3526550acbf56729f3d9ec

        SHA1

        399e799782453e8ab939cc60aa326d6decbbeb85

        SHA256

        244cc218d81b93424ea5f2abc16f654e3fbd2e439bcfc3ea1ce76f792f44f08a

        SHA512

        07a29cbd1f091f836f7eb725b525f99d18052100a64e3e4495434fe542f9642439e954c40098c5a18196874dc66826b0b781d60b3c9d2fbac39087763cc6e461

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver37D4.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

        65KB

        MD5

        a9ea94ee4a3bb43d4057823b2072dc54

        SHA1

        94ade3c34ec08613daba8a1240586c24f8169794

        SHA256

        7edbb67a880d90e53ec7949c4907f4ccf5596899b98ed8651b01a485a7b06789

        SHA512

        0ae24a452c474a0b67eb17ceb78eabc46aad7f04a249d526cbd1bf25ccc94016133ee6cdd1cf342fa3c8dbff60372d18df56137a6c0303bbaee07f005f930ab5

      • memory/392-16-0x0000000000B40000-0x0000000000B41000-memory.dmp

        Filesize

        4KB

      • memory/392-17-0x0000000000B20000-0x0000000000B21000-memory.dmp

        Filesize

        4KB

      • memory/2520-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2520-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4136-18-0x0000000077BA2000-0x0000000077BA3000-memory.dmp

        Filesize

        4KB

      • memory/4136-20-0x0000000077BA2000-0x0000000077BA3000-memory.dmp

        Filesize

        4KB

      • memory/4136-23-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4136-25-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4136-19-0x0000000002180000-0x0000000002181000-memory.dmp

        Filesize

        4KB

      • memory/4136-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4136-13-0x0000000002070000-0x0000000002071000-memory.dmp

        Filesize

        4KB

      • memory/4136-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4504-0-0x0000000010000000-0x0000000010082000-memory.dmp

        Filesize

        520KB