Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-01-2025 05:08

General

  • Target

    fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3.dll

  • Size

    554KB

  • MD5

    cd9488a8aed4b4fb5836d6ae10a897a1

  • SHA1

    3db525aff61e107cdd9ed9e0ce839ee583408c07

  • SHA256

    fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3

  • SHA512

    fe6b175586f3ac893e3ac530290b7e180fabc604ae198d969f492258a4afac3399e1cca31fc3fffa7c8928bd7ebd47dd928e76819c1e88d48e3802ac3c40d368

  • SSDEEP

    12288:ah8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNvrm4O9rR+:a8F+Pzr/Hfp4MIYwZckMQmvrmn8

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 12 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 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4784
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4080
      • 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:4644
        • 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:4760
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:1492
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 204
                6⤵
                • Program crash
                PID:3308
            • 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:3320
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3320 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4368
            • 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:2032
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2032 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2316
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1492 -ip 1492
      1⤵
        PID:4624

      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

        febff5e5b64433316ee5f116c5c14309

        SHA1

        55a533777edeed0d18304f073d59d5ca1e5c7737

        SHA256

        888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4

        SHA512

        cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8

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

        Filesize

        404B

        MD5

        652634e745ded63643932ade23c7c61e

        SHA1

        ed7b91820d0f9a25e2b804429d2fc2703e12a559

        SHA256

        2af722aa579a29118a99b5cc3947c972d99e44b370e9329486cea07be56550de

        SHA512

        e74da6ce1b2f463f576270e7896e6f3e99ecd55221d5fa6a1fcd8249f027610e1e7c9566c7189d42c748b49c181bdc7ca5f21d420424d0120b26455a23df8764

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7391E4E6-C7FE-11EF-B319-CAF61997B0B0}.dat

        Filesize

        3KB

        MD5

        8f3716926e8059231979275789377bde

        SHA1

        03516c75ddca819010a22c5b1edcd59154c5b7c8

        SHA256

        67a78ab4f15ada59940846e4484da8bc8c5e8525a3adba1f716cb511131535d6

        SHA512

        cd7a8365cb9479f626a816568688577152a015c0433301ca684038c5d120f5b97cd62f659f6e32a9cca00fc94a9a7f4d315fb97a70215e16e3af35f6de299153

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{73944731-C7FE-11EF-B319-CAF61997B0B0}.dat

        Filesize

        5KB

        MD5

        8ae147833a7e5ec3cfe54f8c56a7c39b

        SHA1

        e0300836814a4dca2ab9f1954aec9e38d50bc3b4

        SHA256

        970a2dce3e33d993c8284e2ff6edb29b20310d978ea5c3c8736ebfdba2d9439a

        SHA512

        640e8ca38813ec0b9b62a6d9e2b89d372c969a64d46635e2d3a90b775fb34fdb443ae3658dc1f9ca85a58209a828e608727d2fbb3217aacfdcceb78e2d349a8f

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1DD4.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

        119KB

        MD5

        6cfb85f1741b245f7c7774de1107e0fa

        SHA1

        59cbd10ae2cd0142fc090345fc59ccf4973030a4

        SHA256

        9865c7b2dd93dd0292508153a19398804630e1f41d8850421679786be6fead9e

        SHA512

        0a58981b86d9051ce13558571bad1c879e04cd1204ca6cac942cdace59ff2fdd1d985ff881dbaf54bdd7a745ba4358128781126dbc472892c3a2281fe3262681

      • memory/1492-34-0x0000000000600000-0x0000000000601000-memory.dmp

        Filesize

        4KB

      • memory/1492-33-0x0000000000620000-0x0000000000621000-memory.dmp

        Filesize

        4KB

      • memory/4080-0-0x0000000010000000-0x0000000010090000-memory.dmp

        Filesize

        576KB

      • memory/4644-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-4-0x0000000000400000-0x0000000000428000-memory.dmp

        Filesize

        160KB

      • memory/4644-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4644-11-0x00000000001C0000-0x00000000001C1000-memory.dmp

        Filesize

        4KB

      • memory/4760-37-0x0000000077192000-0x0000000077193000-memory.dmp

        Filesize

        4KB

      • memory/4760-36-0x0000000000400000-0x0000000000428000-memory.dmp

        Filesize

        160KB

      • memory/4760-29-0x00000000001D0000-0x00000000001D1000-memory.dmp

        Filesize

        4KB

      • memory/4760-30-0x0000000077192000-0x0000000077193000-memory.dmp

        Filesize

        4KB

      • memory/4760-40-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4760-41-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4760-31-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4760-21-0x0000000000400000-0x0000000000428000-memory.dmp

        Filesize

        160KB

      • memory/4760-35-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/4760-28-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB