Analysis

  • max time kernel
    93s
  • 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
    17-12-2024 00:41

General

  • Target

    dd6b5d3963456f84c80eca572d10d2aeb998ca278ef030957b30fe53c58e0ea9N.dll

  • Size

    276KB

  • MD5

    f119c0b91b1d94a68611b962c5693940

  • SHA1

    010970f20d53ddcf1ba58c915e43f016e027b457

  • SHA256

    dd6b5d3963456f84c80eca572d10d2aeb998ca278ef030957b30fe53c58e0ea9

  • SHA512

    6e539e19da2c7fb1933b01abc74560ea0a28036192e02b2b493918a70aea2e311e207a9c929257e8d0041415fff511763f13e11973ac15fb346c9f7a6c438a93

  • SSDEEP

    3072:FdcQ2ZNMSQvbajUTUItjT68+xQEVulys593oI8mmwXrPbp:VATSOjUQKculy8uI9fbPV

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 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd6b5d3963456f84c80eca572d10d2aeb998ca278ef030957b30fe53c58e0ea9N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd6b5d3963456f84c80eca572d10d2aeb998ca278ef030957b30fe53c58e0ea9N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2136
      • 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:3880
        • 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:2068
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:1848
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1848 -s 204
                6⤵
                • Program crash
                PID:3736
            • 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:3404
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3404 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2792
            • 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:2296
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2296 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4900
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1848 -ip 1848
      1⤵
        PID:4368

      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

        ec237169ada59f1945749967a6d3d7f0

        SHA1

        e8fe32e8fa527409463d3fa0d63b6bdf709d7bd6

        SHA256

        b783f55456ca301f00aab79b6a0720bfb2450aefd094e6026231fab663152d70

        SHA512

        d5b5bff9f6afb36817c2c556e67c4ed7fc787a51bef623eb7150b596cc4cc88bee4b10b5eccae2c2ed0055653166f68bf75f2375ce4689666eb42330361de2d5

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

        Filesize

        404B

        MD5

        81385c6519729818fcadf1360291eb2b

        SHA1

        104524fbc261b7290a50888bfaaa3523da31c209

        SHA256

        165e67b0f4ca1d22513c3dde268259f224c851d528cd34e0bb2e8fda8fac11ea

        SHA512

        932d354252338fcd186f6623c1e715217d3e29cf76912ddb89feda4354363323a429e3be1d4cb24d06b3acc8d8e370c900fb0c467ea63f25d27b7dbcc46018e5

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B8F832C1-BC0F-11EF-AEE2-EE8B2F3CE00B}.dat

        Filesize

        3KB

        MD5

        9faa0955a54b1f05c06f562c9b380374

        SHA1

        24cb83f74ec3d277250de8e400b50602ed8441ba

        SHA256

        5725919568bfe92b73c25fc6bd8e943205afdbd5a81daa2a305783266aec6710

        SHA512

        63ed45e04f1b2e1c8038a1471d32117804077086cfbbd4e75f55ddb9fc3f4e688a292fe896fc887d5f7670230658cae80d8f0a5cd16ee9cad9153c9481a63e52

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B8FA9479-BC0F-11EF-AEE2-EE8B2F3CE00B}.dat

        Filesize

        5KB

        MD5

        19dcdcc224e7a411e7292c4282754297

        SHA1

        bd9bb1c74e77add7a7364de9295e4c7259cad5a8

        SHA256

        4bb0f5ce06c5493b7014868e59cc5e78be399a9ee1f983eb3d4b53483cece171

        SHA512

        47404319bc7dbabf5ea48dadba7732bb6bbbbd0d61fc1cdcd4b614aaea3377ed48d34ea92884c4f5caeaaabeab4e1f7ad4b595e8d99215ed91e3b4545333fc22

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver2E6E.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        124KB

        MD5

        f384ea72b4e3b1342ae772e437a585e9

        SHA1

        e67abce1da81b4f719cf2297d676bb1d69db5224

        SHA256

        aeb89b034661d5bee4aeb61382abd56affce7f6410100f01cdf4c806a7638825

        SHA512

        109b294e44a62453745ec1fc1ae3ffb6cccfb48f909e84a18beb88eab90dc484954808f54c96f292b4c189f38ec02598c08fc7e76d1e537cb40b98f08b2fa536

      • memory/1848-35-0x0000000000730000-0x0000000000731000-memory.dmp

        Filesize

        4KB

      • memory/1848-36-0x0000000000710000-0x0000000000711000-memory.dmp

        Filesize

        4KB

      • memory/2068-30-0x0000000000A60000-0x0000000000A61000-memory.dmp

        Filesize

        4KB

      • memory/2068-33-0x0000000077862000-0x0000000077863000-memory.dmp

        Filesize

        4KB

      • memory/2068-32-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2068-27-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/2068-41-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2068-38-0x0000000077862000-0x0000000077863000-memory.dmp

        Filesize

        4KB

      • memory/2068-37-0x0000000000A70000-0x0000000000A71000-memory.dmp

        Filesize

        4KB

      • memory/2068-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2068-34-0x0000000020010000-0x0000000020022000-memory.dmp

        Filesize

        72KB

      • memory/2136-0-0x0000000010000000-0x0000000010047000-memory.dmp

        Filesize

        284KB

      • memory/3880-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-11-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-31-0x0000000000401000-0x0000000000404000-memory.dmp

        Filesize

        12KB

      • memory/3880-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-12-0x00000000008C0000-0x00000000008C1000-memory.dmp

        Filesize

        4KB

      • memory/3880-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3880-7-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/3880-6-0x0000000000401000-0x0000000000404000-memory.dmp

        Filesize

        12KB

      • memory/3880-4-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB