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
    01-01-2025 18:29

General

  • Target

    6bf3767813d931385b5a9cae668e493b86552c0fd16f502a1928cdb16b38945bN.dll

  • Size

    395KB

  • MD5

    a0251fdc7f611fe44ac49e96d54b3ed0

  • SHA1

    3db0ae58d8e2ff49f97106773b822a8d66401728

  • SHA256

    6bf3767813d931385b5a9cae668e493b86552c0fd16f502a1928cdb16b38945b

  • SHA512

    ef90702dfde6108c1c620f87f4e842294f65d302f54ed64863c1032d61e6c2251a5d501550ebd413dcaec9d4b2edc009ef94d68700f73b5777007cf0d63cc294

  • SSDEEP

    6144:j0IEu0/l7rUdoqWMvjcw3sWSAoITM+NPUHFWnEh9rn9/rvKlJl:679qXvjRc5AoIY+NPUlWnYd9/rU

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 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\6bf3767813d931385b5a9cae668e493b86552c0fd16f502a1928cdb16b38945bN.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2544
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6bf3767813d931385b5a9cae668e493b86552c0fd16f502a1928cdb16b38945bN.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1072
      • 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:2376
        • 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:3416
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3168
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3168 -s 204
                6⤵
                • Program crash
                PID:4900
            • 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:1600
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1600 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4680
            • 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:4512
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4512 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3068
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3168 -ip 3168
      1⤵
        PID:216

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        471B

        MD5

        30f59b20e935520badc298242cb4cff1

        SHA1

        00622b2054eb148a8459c2ccd0b22606c2d5c7f6

        SHA256

        4a981d199e551f2b8c8fa22f0e3fbc264e876e5ed243d83331b2a6083a753e3c

        SHA512

        f22ca09eb3266cee3f363e4f3f955745382679d136d61e7c27f81081cd77efa5f82f82220526928f73049e692b7c060f64032dfae0f967c579c6e6acfd2e8d21

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

        Filesize

        404B

        MD5

        d38a5a7561e36e1546e303fff263648a

        SHA1

        494df9bc5420bb1465356a7bb3b23f52c568b4e3

        SHA256

        dc22dadfc4dcba7e159552052cb59150f3ba4917da9382bd771e6f00b3ddaccf

        SHA512

        cbc645af38a6a8814de7c9d4e38aa567c0ac57c0df0f9db8a4107d481e9c12282852b33941dfdb43c82f0c0ca761896d0126d3bfe3d60b313f71a79f5ba6a3af

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4F78B4B3-C86E-11EF-AF2A-7ECF469E42CC}.dat

        Filesize

        3KB

        MD5

        a6cb5202a521c65bb01869f47ed0461d

        SHA1

        146b8b2454d1a402b83fbd1692f4834f0939fc5e

        SHA256

        18430a3ed5db55f801ae487fd32d38240ae3c8d7c3ea5d50746644df960477c2

        SHA512

        07b88a30fcdaf20522f117e4d5662c74859015f78b8a184d623c1d2f32ee20f5f550b1ad9d6a1d8df2ebdcb734a560478bfe55fbd4382a6b2a14ee693afa1293

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4F7B169F-C86E-11EF-AF2A-7ECF469E42CC}.dat

        Filesize

        5KB

        MD5

        2cad98cecade2fe0fbf1fb8055692a77

        SHA1

        4564d52db68522dabef5dc70a8b22ffa47647c82

        SHA256

        2e9ee160e18bd70d14c00ab9236b84015e0185e1e7a9d521c2541c6f9fc798f1

        SHA512

        a9bb70f2d94540a0942d2094a5e96d96e31a6d6a8ad16d2df5aee18be478b7a23f3b329153ea990ea96ad9bbfeffdf82b4a6a3345b87fb2980ccb521e6b9278f

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1817.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DQ67RYHS\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        59KB

        MD5

        0e0f0ae845d89c22bb6385f64a6b85fd

        SHA1

        0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

        SHA256

        5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

        SHA512

        baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

      • memory/1072-0-0x0000000010000000-0x0000000010069000-memory.dmp

        Filesize

        420KB

      • memory/2376-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2376-9-0x00000000008C0000-0x00000000008C1000-memory.dmp

        Filesize

        4KB

      • memory/2376-11-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2376-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2376-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2376-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2376-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2376-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3168-31-0x0000000000500000-0x0000000000501000-memory.dmp

        Filesize

        4KB

      • memory/3168-32-0x00000000004E0000-0x00000000004E1000-memory.dmp

        Filesize

        4KB

      • memory/3416-33-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/3416-29-0x00000000771A2000-0x00000000771A3000-memory.dmp

        Filesize

        4KB

      • memory/3416-27-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3416-38-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3416-35-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3416-34-0x00000000771A2000-0x00000000771A3000-memory.dmp

        Filesize

        4KB

      • memory/3416-28-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB