Analysis

  • max time kernel
    94s
  • max time network
    121s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 00:22

General

  • Target

    39fa8429c96a67df3a2f354a9c17142cc84f86ae60867fd4f586a28ea4d411b0N.dll

  • Size

    348KB

  • MD5

    fffd364caad60b9d1bb874a060502da0

  • SHA1

    68df745f2eb0cd8f9efabaa56bb88bca47093d45

  • SHA256

    39fa8429c96a67df3a2f354a9c17142cc84f86ae60867fd4f586a28ea4d411b0

  • SHA512

    3b3411411c8ae43d3ef4107ea0dd9c2d3822b236b4f12f05560bba9ed3f6b058e43c718a202771b88af59e8736b19cccde8803a62f53cf6e57547b1ac490406a

  • SSDEEP

    3072:e2UxPvVKNiNz1a2JRC+Tq/KcULyqI4C0qI4hsr1hBb4hRxv:FGvQ4Nx9RHTVNLybAqIcmT8v

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 10 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\39fa8429c96a67df3a2f354a9c17142cc84f86ae60867fd4f586a28ea4d411b0N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3164
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\39fa8429c96a67df3a2f354a9c17142cc84f86ae60867fd4f586a28ea4d411b0N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3096
      • 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:5112
        • 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:2992
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:1820
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1820 -s 208
                6⤵
                • Program crash
                PID:456
            • 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:1968
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1968 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2952
            • 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:4664
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4664 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4880
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1820 -ip 1820
      1⤵
        PID:3668

      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

        4eaf9b3a48166fb8e172b3a7f24579ff

        SHA1

        0f45af7ebcfc4e2a6fb9c6eded199411ef8de0ae

        SHA256

        6df30e165ee411a067f02df7637526554b5f4d69dc970f0d67d2ad5b78974d1b

        SHA512

        883f4c7db6a115cbe2c2618d882bb3731b60c5c8012f851beb73985703244e17b9e401c987fcfcd5fbc1f8c187a106ccc438004cdc2f0d0e0d745f9db0d2d338

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

        Filesize

        404B

        MD5

        b0025c9b3aa81db19fcdf01db03bf19b

        SHA1

        c014bd51026a9ee3a63a3d771b8cd305e983af58

        SHA256

        5ebf1de23dc686f82a5bc0b59b6b2f815d8b575f942924af208205089b482995

        SHA512

        7e188595f68b83ae039c2dbe600af7caf73999a63e5c9508db21075eaa0ff4009f2868643b35f2d9db1cba2a104e64e0550bfbeb42ceb93f9936bae2f151a9b0

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{E9346AF8-BFFA-11EF-A7EA-CA65FB447F0B}.dat

        Filesize

        4KB

        MD5

        f05e473de4b19dae5edd1b60c52b7806

        SHA1

        17b4270eff622b5904e4647adf263a615a64f06a

        SHA256

        1430a598a8584a084fc57face9e9b305c27a0499db14086671c0a7bf9207fc6b

        SHA512

        1093405af1180e05c4e6ddbc89fc454b123cadfaf30d0cf0b20e39f83004443e2c1c3d46a0cde94c749b00f59cd5060718d5ce488d52126c55918cf42e0ab896

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{E936CCFB-BFFA-11EF-A7EA-CA65FB447F0B}.dat

        Filesize

        5KB

        MD5

        a9eb0d526c541090f9c3d504d82d67fd

        SHA1

        0106de8d5931f7bc5818e3dfb58c52e66b35edac

        SHA256

        6934e231ef6328733c2cbcdc214bfcdbed43f57c89903e29b3187c77add81ab5

        SHA512

        ddcbd1602d0a767de3ef5b6bb1adbe11286501e045fc6494957b96b49a9a3f445a094e0a72a003b730530a780b7f15a375c8f07f60332e456cfb03393d41b32d

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

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        247KB

        MD5

        bb0ce6d96fef4beabd43ece95d6a00a8

        SHA1

        465279b83362b977ec37f4f0d4229b8a0de213ae

        SHA256

        32612b60c987da1f50e8eb06426e492fb649d1d4de5f15335a70b1718a364e89

        SHA512

        c2b96fec8c24e3ffbc1e1d5f812a7e8d2673a322411fc7b9dee2f3a602eb9da798fa2c3b5e84c9c0df23bf6c41516cb28cbd067162ede502dbd8e2b1055b4447

      • memory/1820-32-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

        Filesize

        4KB

      • memory/1820-33-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

        Filesize

        4KB

      • memory/2992-34-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2992-36-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2992-27-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2992-29-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/2992-30-0x0000000077512000-0x0000000077513000-memory.dmp

        Filesize

        4KB

      • memory/2992-39-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2992-35-0x0000000077512000-0x0000000077513000-memory.dmp

        Filesize

        4KB

      • memory/3096-0-0x000000006D280000-0x000000006D2D7000-memory.dmp

        Filesize

        348KB

      • memory/5112-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/5112-10-0x0000000000160000-0x0000000000161000-memory.dmp

        Filesize

        4KB

      • memory/5112-4-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB