Analysis

  • max time kernel
    95s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 09:38

General

  • Target

    b9ef56d1a7d7220563f6ab4e3cbac2455d2614c4d2d4849bcf1e4b94fe9ad858.exe

  • Size

    160KB

  • MD5

    0db758d281e1792f9b5840ea192b6fe9

  • SHA1

    6b4273211fe0720ffbaeefcc5f3745f4ce830632

  • SHA256

    b9ef56d1a7d7220563f6ab4e3cbac2455d2614c4d2d4849bcf1e4b94fe9ad858

  • SHA512

    6ff2c93929f03b0883c7005cc0ad2edf1278bb2ef36781449c8c2b5011e94c99e5fbb6bc6ae8109cbda321499cf728a703ff9e74bccd678f5c3596db7834d5b8

  • SSDEEP

    3072:CT2xNfzEmPUac0yCRS9EK0TLmtmaYNELh/o:GkPpe0m1YN1

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 1 IoCs
  • UPX packed file 13 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 4 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 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9ef56d1a7d7220563f6ab4e3cbac2455d2614c4d2d4849bcf1e4b94fe9ad858.exe
    "C:\Users\Admin\AppData\Local\Temp\b9ef56d1a7d7220563f6ab4e3cbac2455d2614c4d2d4849bcf1e4b94fe9ad858.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3456
    • C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      2⤵
      • 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:2460
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        3⤵
          PID:2396
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 204
            4⤵
            • Program crash
            PID:232
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:5068
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5068 CREDAT:17410 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:3584
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2784
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2784 CREDAT:17410 /prefetch:2
            4⤵
            • System Location Discovery: System Language Discovery
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2396 -ip 2396
      1⤵
        PID:1976

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        160KB

        MD5

        0db758d281e1792f9b5840ea192b6fe9

        SHA1

        6b4273211fe0720ffbaeefcc5f3745f4ce830632

        SHA256

        b9ef56d1a7d7220563f6ab4e3cbac2455d2614c4d2d4849bcf1e4b94fe9ad858

        SHA512

        6ff2c93929f03b0883c7005cc0ad2edf1278bb2ef36781449c8c2b5011e94c99e5fbb6bc6ae8109cbda321499cf728a703ff9e74bccd678f5c3596db7834d5b8

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

        Filesize

        471B

        MD5

        641fd00a680e2a2b7c46da9f49d4ac01

        SHA1

        91342c03f46164a5ffba758b6201387912e09026

        SHA256

        69b70d73aed768e709b4e26268d4bfbb349d3ed2d7fc7bba042a347b29f1062d

        SHA512

        004e47e9e0623bf782ad71418257088902bec47d213027287c46393d7a413d69a69fd213df1781d3c49ddde689943d5c5f3ff844fb9cc81c7eeaf331b8a4344f

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

        Filesize

        404B

        MD5

        7ebd486c383d72a5445e6005e850ec2b

        SHA1

        8fb7d407872e57f13e94592df4b5e9597bd894de

        SHA256

        4edcfffaaaa340469b3722001e94ce0fdc0a4125f6482753dcbd9ed94be9c5c6

        SHA512

        4879686803e2462c570bc57bc58c170ac6f395864d577f08ba44a0ac6ea10ca022b889e02af3565162e2340c63af02a83f6674788e2d25b737ea0247a9d7a08e

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{E3D086D8-BD23-11EF-BDBF-CEB9D96D8528}.dat

        Filesize

        5KB

        MD5

        c33124664c3f364f2ebfe2a612a178b0

        SHA1

        ec4c6399c34bea35bcc804ed7ed5c4af00bdd878

        SHA256

        d925eb845fde48ce1b38388de043281e4a24b4efb186f5d9a0e18fa6ac4052d3

        SHA512

        33298d363c12c8b23e8025e7812fdc0c243ce5bbca140e29ea4fa82f1ea9daa71dd5a185980af30f303ea1f9a751490f25997f7faa6f121179e1b7c4e35afe71

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{E3D2E901-BD23-11EF-BDBF-CEB9D96D8528}.dat

        Filesize

        3KB

        MD5

        03957bad33d736281563d447f63cc311

        SHA1

        12650f31c7ca87deb230fba8dc645fe60470a62a

        SHA256

        91c06b483bfd01a6b918f61049190f5211af22171fdbd27d75c1744c9096876d

        SHA512

        99eca04716c17215e3aa290ae7aab2579b12591350b909329df7062e4ffc3ebf57938b96c5f0615344683784ff7136d5695a3aca35f3f82331870abea3e86785

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1B16.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • memory/2396-31-0x0000000000880000-0x0000000000881000-memory.dmp

        Filesize

        4KB

      • memory/2396-30-0x00000000008A0000-0x00000000008A1000-memory.dmp

        Filesize

        4KB

      • memory/2460-34-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2460-39-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2460-28-0x0000000077D52000-0x0000000077D53000-memory.dmp

        Filesize

        4KB

      • memory/2460-25-0x0000000000430000-0x0000000000431000-memory.dmp

        Filesize

        4KB

      • memory/2460-21-0x0000000000400000-0x0000000000459000-memory.dmp

        Filesize

        356KB

      • memory/2460-27-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2460-33-0x0000000077D52000-0x0000000077D53000-memory.dmp

        Filesize

        4KB

      • memory/2460-35-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2460-32-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/3456-2-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-0-0x0000000000400000-0x0000000000459000-memory.dmp

        Filesize

        356KB

      • memory/3456-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-4-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-5-0x0000000000400000-0x0000000000459000-memory.dmp

        Filesize

        356KB

      • memory/3456-6-0x00000000007E0000-0x00000000007E1000-memory.dmp

        Filesize

        4KB

      • memory/3456-3-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3456-1-0x0000000000401000-0x0000000000402000-memory.dmp

        Filesize

        4KB