Analysis

  • max time kernel
    93s
  • max time network
    115s
  • 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 15:43

General

  • Target

    f7315a4c065536bb9083d2785eb593e27bfa81f8b52239cb4fb996fe9471bde3.dll

  • Size

    563KB

  • MD5

    5abca72f1760f98a849630c0143c6a0a

  • SHA1

    222124850ffb6b426cf7289f027d91e153dee543

  • SHA256

    f7315a4c065536bb9083d2785eb593e27bfa81f8b52239cb4fb996fe9471bde3

  • SHA512

    ae88670f132ae8fc3a6f64f99f8a23e17aaffea9198ecec2beb8aba60febdd3602b75dccc756d7cdbdbb249f43e5a811c8fc35ca56a9e0517f957507e1479dfa

  • SSDEEP

    12288:Uh8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMN1ZkU:U8F+Pzr/Hfp4MIYwZckMQmXkU

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 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 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 45 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\f7315a4c065536bb9083d2785eb593e27bfa81f8b52239cb4fb996fe9471bde3.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1528
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\f7315a4c065536bb9083d2785eb593e27bfa81f8b52239cb4fb996fe9471bde3.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1744
      • 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:2936
        • 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:2320
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4588
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4588 -s 204
                6⤵
                • Program crash
                PID:3484
            • 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:1348
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1348 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4700
            • 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:408
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:408 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3220
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4588 -ip 4588
      1⤵
        PID:3928

      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

        36ed732b90a27bd5f4716645a456ad34

        SHA1

        93caaf2e2b76b96142e3a9865eb12aa6aab4296e

        SHA256

        a41bae0a57d70f030a24668e1e68cfec75c27ed94105d8ae895025edfef3132e

        SHA512

        460f8f4e5bc5f445c7f175699c80e86e2f4c1822a4e7c3ecb07de224db0c7428f74058fa3e164b3fde0777af2818da0e9e831b869e8bd7b1ffb3b4abc794fbd2

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

        Filesize

        404B

        MD5

        1d4c599eb79f3cbec724cb92bd08ea22

        SHA1

        9aefa6dabfb8f64c877f87b11bf443984d5a0ba0

        SHA256

        6b88fef421806dd7653d78ba512b291e59ecfe5ddd208d22c7f654597be3fe8b

        SHA512

        08fdd47c2e675b257d7f028e064bc72f5b83d9c39f614f52b5791183702d0dfcef90a804d5ee204425fb904d188d57d7242587d6e9364b30f9a002cdae065364

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{79A457A6-C07B-11EF-B9B6-E24E87F0D14E}.dat

        Filesize

        3KB

        MD5

        7f8d209f906571c3ad70a87991624d13

        SHA1

        44ecbd0c76628c0ad44ddc63a885439812acd780

        SHA256

        6fb9809d0439c4e089f31371c776e9ac0813ead41a51a019614e5238485d5497

        SHA512

        51d930245f28904fa9b06133c60b6f40df2912252d3dcf06d5af7c70b3fd1ab989dc4edd27d6a43cd6fa691ad35db0ad28247d04d002186242fcfd4e80cc765f

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{79A91AA7-C07B-11EF-B9B6-E24E87F0D14E}.dat

        Filesize

        5KB

        MD5

        a9efe55d7403e7066adb6a1193bd2b92

        SHA1

        757d66d6fcbb54a844503a3154c5e86e648f4f6d

        SHA256

        3c806c77c76395647538a6ca21778d252bc3c219c930f492525bb303a6be6f87

        SHA512

        0e25467c3fa367e2a52e468394a721e32058d2616adbcb69e5af2f5431f82b9360a86f1878271b084c31c9d2a655530ee292a3f371508f21a03b8347318b4eed

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF0AA.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9MFSIIMR\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        127KB

        MD5

        401b6a71129fa203f1bf4d5ade823209

        SHA1

        5ac71804a83b9acd4698a947eca02d1b1fbcdb93

        SHA256

        872552670d9eedc68c82906db27d877b552a111438c9ab4839f80444c3baaea2

        SHA512

        24706afbc25df0e42a76adc7a7c114c5f43a41682fb48a279559016323358d31ebb3349bd5d13e877659110b88a29d79f075c220e8fbb9ab9be2bdd548a56e50

      • memory/1744-0-0x0000000010000000-0x0000000010092000-memory.dmp

        Filesize

        584KB

      • memory/2320-35-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2320-38-0x0000000077852000-0x0000000077853000-memory.dmp

        Filesize

        4KB

      • memory/2320-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2320-21-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/2320-28-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2320-29-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2320-31-0x0000000077852000-0x0000000077853000-memory.dmp

        Filesize

        4KB

      • memory/2320-30-0x0000000000430000-0x0000000000431000-memory.dmp

        Filesize

        4KB

      • memory/2320-41-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2320-36-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/2320-37-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-11-0x00000000008C0000-0x00000000008C1000-memory.dmp

        Filesize

        4KB

      • memory/2936-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2936-4-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/4588-34-0x0000000000A70000-0x0000000000A71000-memory.dmp

        Filesize

        4KB

      • memory/4588-33-0x0000000000A90000-0x0000000000A91000-memory.dmp

        Filesize

        4KB