Analysis

  • max time kernel
    94s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 18:57

General

  • Target

    c63bb67c5bcf8dc1fc4e06f159f0c52ac3bc1e622d8dffc1edb1cb068f510df0N.dll

  • Size

    404KB

  • MD5

    bdc1370955813079f0f6606f6f34eba0

  • SHA1

    7c15fa29810bd334efaf6198aa3fc0c044f22f3e

  • SHA256

    c63bb67c5bcf8dc1fc4e06f159f0c52ac3bc1e622d8dffc1edb1cb068f510df0

  • SHA512

    b9bb90de9abd1e6ad0b2c2288756a3ff865b5c33c764f5d1eb098765bcaa1eea63881fa928900198e580933df1f79ac541bcee77bd11893f6e3da9405429c01f

  • SSDEEP

    12288:2Gy4ZRxlsgwvkruUMDtmF7dCLftIQwpeBdYRx:Lvxls/vkruUMDIF7qZsRx

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 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 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 50 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\c63bb67c5bcf8dc1fc4e06f159f0c52ac3bc1e622d8dffc1edb1cb068f510df0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\c63bb67c5bcf8dc1fc4e06f159f0c52ac3bc1e622d8dffc1edb1cb068f510df0N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3448
      • 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:3120
        • 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:4700
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4120
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 84
                6⤵
                • Program crash
                PID:4228
            • 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:2864
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2864 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3068
            • 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:3572
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3572 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:5056
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3448 -s 608
          3⤵
          • Program crash
          PID:4720
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3448 -ip 3448
      1⤵
        PID:4416
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4120 -ip 4120
        1⤵
          PID:1508

        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

          e5e877bcc2542ab8629d8f34bafcd7f4

          SHA1

          8f618efa1584268e9eafd2b01c2a2ac006113c01

          SHA256

          5e63bcec102963b96b1f7d08ec512431a0ba748f90134dc51a05046296541e9e

          SHA512

          79153f941ae2cc4a5649ac729f03dd3f98df24d5084e36d14467b2a859e6d63fc4167feac24e7b519a9e179fb243447fe6d09519169b11e3151d5cc467e4c9d4

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

          Filesize

          404B

          MD5

          65200d8a183237bcdfb82743d93f7df2

          SHA1

          a96133de78b51f54aa37fb47d8b25271e25586a1

          SHA256

          f39e17c1cca9835ffb43e15a96077f4be4ef26a090f86632e460b8ea8362b862

          SHA512

          9f74e884512d4d746ceeb9dc53c7526a2380e2a2cf5463067025610b2681d3e6822c41d1574047bb1f4894c2ae26a61784cd36ecf993e5299f73da1f150014fc

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

          Filesize

          404B

          MD5

          48200ea78152a762372244eeab2796c6

          SHA1

          6a00e9c111e5d31ef3d2b68efc14f36161a7d9c4

          SHA256

          cb29d9b2df5954fddb34166a969acebe9136de8b7e86d8c43cf6fa1f98a7dca2

          SHA512

          8381bc25bb7f76c334d8754097b7a7a2d30dfc2c2bfc4ba2a40807546bedf464fe02eb6c530f75b22bb2626554de55a55981e5b7948d68d40919c456f2384463

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FC66B0E7-C6DF-11EF-B319-F6235BFAC6D3}.dat

          Filesize

          5KB

          MD5

          1bf83556db6483cff07267512d2d5210

          SHA1

          09ef07d5f5d25b1e4a8067b1c3453d4a0bf26ef6

          SHA256

          110d99951e3ecef67b9891cca51e4a077f5356a29c99e9fe2f8cbd7de30431d8

          SHA512

          464ac9bab6250b9febdab1514ee0e3996cc3076ae4b52ccf76ad1cf92098fa4d89ff411186d78b609f93e90aa92406325146edb47caec85e5b1ba9324ba5cb93

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FC69147F-C6DF-11EF-B319-F6235BFAC6D3}.dat

          Filesize

          3KB

          MD5

          5b0f9c549dfd9f6bea3c730ac79ca5b9

          SHA1

          b6328aa72a7bda2940769f2cf90f772705347da4

          SHA256

          04400d40d0ae733d97271db594c05546c1e4d4bc2be9b34f61cc7727cdf4483d

          SHA512

          b9e16dad0b290767f86b811d11dfe2967484cd6635c9a62d22f18a58a410f27495e80541fa758150e71a854b132238d8d63397934791742c3b9b92ea488aa1c4

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver11BE.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

          65KB

          MD5

          a9ea94ee4a3bb43d4057823b2072dc54

          SHA1

          94ade3c34ec08613daba8a1240586c24f8169794

          SHA256

          7edbb67a880d90e53ec7949c4907f4ccf5596899b98ed8651b01a485a7b06789

          SHA512

          0ae24a452c474a0b67eb17ceb78eabc46aad7f04a249d526cbd1bf25ccc94016133ee6cdd1cf342fa3c8dbff60372d18df56137a6c0303bbaee07f005f930ab5

        • memory/3120-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3120-11-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3120-5-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3448-1-0x000000007C340000-0x000000007C3A6000-memory.dmp

          Filesize

          408KB

        • memory/3448-20-0x000000007C340000-0x000000007C3A6000-memory.dmp

          Filesize

          408KB

        • memory/4120-19-0x0000000000A40000-0x0000000000A41000-memory.dmp

          Filesize

          4KB

        • memory/4120-18-0x0000000000A60000-0x0000000000A61000-memory.dmp

          Filesize

          4KB

        • memory/4700-21-0x00000000005E0000-0x00000000005E1000-memory.dmp

          Filesize

          4KB

        • memory/4700-22-0x0000000077812000-0x0000000077813000-memory.dmp

          Filesize

          4KB

        • memory/4700-25-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4700-27-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4700-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4700-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4700-15-0x00000000005D0000-0x00000000005D1000-memory.dmp

          Filesize

          4KB

        • memory/4700-16-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB