Analysis

  • max time kernel
    92s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 02:02

General

  • Target

    98d2fb3990c98e7cd0b607c86c921fbe5100ce2f179897862403447dd7324b78N.dll

  • Size

    324KB

  • MD5

    ab3cd72f15a1bbcdbaac44fc089e5e30

  • SHA1

    3da51062a994c148caeaad1c388738ef758ce5fe

  • SHA256

    98d2fb3990c98e7cd0b607c86c921fbe5100ce2f179897862403447dd7324b78

  • SHA512

    f2c1aff991175644da92be203b50720234b33c4b58f8d1bbcdb97c1b42ce9e030a35bf30615f8ea3a95c32110dd3c043cacc888e2830719daac5885612f58adb

  • SSDEEP

    6144:lMJOWK4l0wqOVq1DuGwH5ZIzE1BN2hcw//JI:l2OWK4llsux5ZEE1qVhI

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 11 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 45 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\98d2fb3990c98e7cd0b607c86c921fbe5100ce2f179897862403447dd7324b78N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2268
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\98d2fb3990c98e7cd0b607c86c921fbe5100ce2f179897862403447dd7324b78N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1864
      • 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:4976
        • 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:2908
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4832
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 208
                6⤵
                • Program crash
                PID:4860
            • 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:4296
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4296 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:5040
            • 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:4000
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4000 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:540
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4832 -ip 4832
      1⤵
        PID:2180

      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

        641fd00a680e2a2b7c46da9f49d4ac01

        SHA1

        91342c03f46164a5ffba758b6201387912e09026

        SHA256

        69b70d73aed768e709b4e26268d4bfbb349d3ed2d7fc7bba042a347b29f1062d

        SHA512

        004e47e9e0623bf782ad71418257088902bec47d213027287c46393d7a413d69a69fd213df1781d3c49ddde689943d5c5f3ff844fb9cc81c7eeaf331b8a4344f

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

        Filesize

        404B

        MD5

        254bcaafb713cb908939336fb6d1e1b8

        SHA1

        b51a694c24ecd81940edc454e0cd7123cf4b9e38

        SHA256

        0a07924e84d1dbcfa33e5a6b3c4fa3abda68bda0a097303711574de1d53a77db

        SHA512

        2551c694404f8057e6ef9d74147e8cfd5aead70f64b7993f019d5002c4957ea5a74526134052e5828425eaf60cd022cbc0a85daff59cb5e923f51a2ec840f964

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

        Filesize

        404B

        MD5

        d40af29765cbbd04036db94fd2d5cbb6

        SHA1

        dc11ffe8f9ad599e7a81c28eead50afdc5d8c537

        SHA256

        07a60a4ca608b7bd9d92b9e732bbc4f06145790046268094621aa021d9d3ea56

        SHA512

        9dc10d59a8cffa7b6d6e84e0fcfda5ee8532a89428e1e94fee67439fb61d677a1a7531aa543e3908924b56dd508ddde450cf2bc2dbd753b5ce0a112b7d5a84c4

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{3450FA6D-BCE4-11EF-B319-FE5A08828E79}.dat

        Filesize

        3KB

        MD5

        fb72f7174c7e17e05c9892c69b017067

        SHA1

        7fcbca19bbaf0f913cc417d58f08bcf7baccfab7

        SHA256

        df01df90323ce93a5924a477c3ec22c28f067f2bac6adfebe1e0161a37a1c54d

        SHA512

        b63943df722bcb1fc724af4c175d905273c1e9b9b864b1d177733bd5a35da8e377bd4243e4b14b52999f7e9ee0c378b8e483592de1470721966f8b179e81e905

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{3455BDDA-BCE4-11EF-B319-FE5A08828E79}.dat

        Filesize

        5KB

        MD5

        b7f60765b8ba01f1d6ee9662c18eb703

        SHA1

        20daa351a04ebe72f0b1dd7342dbf388959dbc90

        SHA256

        a6564906c8294e5f1163bd7a0cda024c37ab9433ba334e155fd49869c0caaa4f

        SHA512

        a1d33c791cda1e36906ca719e9eae7bc9c64f80f35900c7377b129ad58ff9cae25549bfba38953f8e660b1e6818fc26b7589d7285e9bc869a018973ac095a8cc

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver3063.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        173KB

        MD5

        f603c2d3a1c6b4f856feca3d64d7cc40

        SHA1

        dc51f92df6a4556aec378dd3d9d9f9a2c47daf54

        SHA256

        56bac5d625d087ae6fd94c5f86780c648c6f3b217015900e7566051e931e32d6

        SHA512

        00c7220823a8e6a13483d4cf3a257b5236b82f2dc8e783d0ed393fabef2b0f246c35616d3edd070bf54280ea42fa3036a13d59c98250a67552be70606b344b78

      • memory/1864-0-0x0000000010000000-0x0000000010055000-memory.dmp

        Filesize

        340KB

      • memory/2908-39-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2908-37-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2908-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2908-38-0x00000000771E2000-0x00000000771E3000-memory.dmp

        Filesize

        4KB

      • memory/2908-32-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/2908-30-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2908-26-0x0000000000400000-0x000000000042C000-memory.dmp

        Filesize

        176KB

      • memory/2908-33-0x00000000771E2000-0x00000000771E3000-memory.dmp

        Filesize

        4KB

      • memory/4832-35-0x00000000004A0000-0x00000000004A1000-memory.dmp

        Filesize

        4KB

      • memory/4832-36-0x0000000000480000-0x0000000000481000-memory.dmp

        Filesize

        4KB

      • memory/4976-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-11-0x0000000000400000-0x000000000042C000-memory.dmp

        Filesize

        176KB

      • memory/4976-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-27-0x0000000000401000-0x0000000000404000-memory.dmp

        Filesize

        12KB

      • memory/4976-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-12-0x00000000008A0000-0x00000000008A1000-memory.dmp

        Filesize

        4KB

      • memory/4976-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4976-6-0x0000000000401000-0x0000000000404000-memory.dmp

        Filesize

        12KB

      • memory/4976-5-0x0000000000400000-0x000000000042C000-memory.dmp

        Filesize

        176KB