Analysis

  • max time kernel
    94s
  • max time network
    144s
  • 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 15:47

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 11 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 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 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:1832
    • 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:3164
      • 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:4804
        • 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:2336
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:420
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 420 -s 208
                6⤵
                • Program crash
                PID:3144
            • 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:2124
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2124 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4268
            • 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:4940
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4940 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3888
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 420 -ip 420
      1⤵
        PID:4700

      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

        a0a758e123871831af959d021ad63f3d

        SHA1

        9bfc1b0f368de8428f688b91e7e44fda1286bb17

        SHA256

        ad5de7b3c2219d871ef5b59bdd6b9b658f88d6bb5ca102273c907215d2bafdbf

        SHA512

        d7407f1be5ff67343c3b13a4a0222b27a4b89b1c20e3f0bdf09582a59c603b8b12749ec65a09136de678282a68440ef79a27f02bdc49ce78e8e6101a9dc75897

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

        Filesize

        404B

        MD5

        36070691fca5ac0c30417c0763df522a

        SHA1

        e0970ac8167bb70bd7d0800e3ef362a087ad4145

        SHA256

        a76cb4f12df95da4f413e831c8db2c37942cb1c52328fed1ff5b2e72eb2c8833

        SHA512

        c4617564021e0ba44459ee2e7eaabb3019161343e04a0860d6583710c83302e4e89e1cc0a4675fe675899ad1cc2c7bfea1528a1fc8cebf35c7cfa6ff9d7ea426

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{17A98898-C07C-11EF-A7EA-FA89EA07D49F}.dat

        Filesize

        3KB

        MD5

        1bda743fdb78087f01614373b8389f68

        SHA1

        e00efe0d4fb493a93ab3b6e9c49ca6a48eadad92

        SHA256

        b7d762e085d9c2d31552470b5d9e2256e845e8244320d8c8b01205abab43e0ff

        SHA512

        a79ba2ccea324a9d4c54bfcd505a81c95445bff63b7e75e972e908b4d5cafaae3c1b30385c70eaabefea4089a630952c105584b23f56b7ec0e4b5ffb881a82c2

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{17ABEA8D-C07C-11EF-A7EA-FA89EA07D49F}.dat

        Filesize

        5KB

        MD5

        441f1325557e34b90f23fd2d712fd46a

        SHA1

        a2a05d439b4c666b6df334d9a0507df88fc282e8

        SHA256

        f677ba57a74f35f92aa157876bc30d3c771e917e5b9e3ed22b1559d5902ccb76

        SHA512

        7d1c76630852c7ec72e9345ea356ae1e43f7c95e679d4e832882081c14e8cf7798f3d681824095d982ef443b275d566eabc217f85749c21460b6a625a61c6d9d

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver368C.tmp

        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

        127KB

        MD5

        401b6a71129fa203f1bf4d5ade823209

        SHA1

        5ac71804a83b9acd4698a947eca02d1b1fbcdb93

        SHA256

        872552670d9eedc68c82906db27d877b552a111438c9ab4839f80444c3baaea2

        SHA512

        24706afbc25df0e42a76adc7a7c114c5f43a41682fb48a279559016323358d31ebb3349bd5d13e877659110b88a29d79f075c220e8fbb9ab9be2bdd548a56e50

      • memory/420-37-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

        Filesize

        4KB

      • memory/420-38-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

        Filesize

        4KB

      • memory/2336-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2336-40-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/2336-45-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2336-24-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/2336-25-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/2336-39-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2336-33-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2336-34-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/2336-35-0x00000000772D2000-0x00000000772D3000-memory.dmp

        Filesize

        4KB

      • memory/2336-41-0x00000000772D2000-0x00000000772D3000-memory.dmp

        Filesize

        4KB

      • memory/3164-0-0x0000000010000000-0x0000000010092000-memory.dmp

        Filesize

        584KB

      • memory/4804-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-12-0x00000000001C0000-0x00000000001C1000-memory.dmp

        Filesize

        4KB

      • memory/4804-22-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/4804-7-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB

      • memory/4804-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-6-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/4804-11-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-5-0x0000000000400000-0x0000000000432000-memory.dmp

        Filesize

        200KB