Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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 22:59

General

  • Target

    3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46.dll

  • Size

    223KB

  • MD5

    b91ef8d11ff6e9dffa84c7ed89c105ac

  • SHA1

    ead5fc975b54096d3ef25f78ce4722841d485def

  • SHA256

    3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46

  • SHA512

    70773aa317f06a5fadf0081363a65a44506707565b170295ccff0e14bd6d5e2ba9503a90a49af56065622e9d8d1d3906b5a1340a56ea0bfaa3caff9fb362719a

  • SSDEEP

    6144:+woIxQEiHVG8W+rCjr1mpTFO1v5G7LwwPDqsksdH2fd:BK+JX1mu1v5G797qsksdWF

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 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 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 43 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4620
      • C:\Users\Admin\AppData\Local\Temp\5zHYL23
        "5zHYL23"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4812
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:4908
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4908 -s 208
              5⤵
              • Program crash
              PID:4712
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2408
            • 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:2064
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2064 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3888
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2064 CREDAT:17416 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:5012
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:956
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 956 -s 204
                5⤵
                • Program crash
                PID:2772
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:4568
              • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                5⤵
                • Modifies Internet Explorer settings
                PID:1828
            • C:\Users\Admin\AppData\Local\Temp\xuykcirkpnflquoj.exe
              "C:\Users\Admin\AppData\Local\Temp\xuykcirkpnflquoj.exe"
              4⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:692
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 4908 -ip 4908
        1⤵
          PID:5068
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 956 -ip 956
          1⤵
            PID:2852

          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

            4399a8b0bbedfd7321c74d9d82febafe

            SHA1

            e9c2bbfce27a895f8091c46760a4d430beb1da8a

            SHA256

            1025fa337cda3c729407cf6550f56782ff26f78b16a9621b7b39a7ea2e72ae84

            SHA512

            21352a5b9eddd7dc8ae67c8b5cc6cf26d39e3b29a4339c2e578da76abdef88cd0a5e0f24ea331e73bdefb66919efc23e46f88e95e7e1de6426d3c72c21800008

          • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver4273.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:\Users\Admin\AppData\Local\Temp\5zHYL23

            Filesize

            95KB

            MD5

            59a8da264fd7a5ae49c8ffa33eeb16ce

            SHA1

            c11ca66a4cce9b7496f214041807da451c7eae2a

            SHA256

            a96dcd4fe7b6cb854545e91ebc3612c5f88e9aae6adf62b00af31bb1ab304304

            SHA512

            f05bd6fb82cb6776ef059d7205aecc893a606c742cf0a459830c9780ace0b4a6a938b59cc5b26c2e590b941d07cb8e7890db44fba4e66c5e7d090fe9c39133c7

          • memory/692-54-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/692-55-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/692-49-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/692-50-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4620-4-0x0000000074CF1000-0x0000000074CF2000-memory.dmp

            Filesize

            4KB

          • memory/4620-0-0x0000000000870000-0x0000000000871000-memory.dmp

            Filesize

            4KB

          • memory/4812-10-0x0000000000940000-0x0000000000941000-memory.dmp

            Filesize

            4KB

          • memory/4812-16-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4812-22-0x00000000772D2000-0x00000000772D3000-memory.dmp

            Filesize

            4KB

          • memory/4812-19-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-24-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-26-0x00000000772D2000-0x00000000772D3000-memory.dmp

            Filesize

            4KB

          • memory/4812-25-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-17-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-5-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-7-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-48-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4812-11-0x0000000002070000-0x0000000002071000-memory.dmp

            Filesize

            4KB

          • memory/4812-13-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4812-6-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4908-15-0x00000000001C0000-0x00000000001C1000-memory.dmp

            Filesize

            4KB

          • memory/4908-14-0x00000000001E0000-0x00000000001E1000-memory.dmp

            Filesize

            4KB