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Analysis

  • max time kernel
    93s
  • max time network
    149s
  • 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, 02:36

General

  • Target

    90a4863f512db849123fec82349360150733176aa4553f21fe7e7203bc4e9958.dll

  • Size

    348KB

  • MD5

    7b6552dc6b72933be77d16a2b283a370

  • SHA1

    d806bf125245d9559bc607271293de0d09ad816a

  • SHA256

    90a4863f512db849123fec82349360150733176aa4553f21fe7e7203bc4e9958

  • SHA512

    62f2e0210fea77fbd2a95e4a95f1bcbb3b150eff00caf237efe1e59173b123ed9e948d8d127396f31fd32e134918ab77de42c7d53b6adc99fe680b332140ff54

  • SSDEEP

    3072:e2UxPvVKNiNz1a2JRC+Tq/KcULyqI4C0qI4hsr1hBb4hRxf:FGvQ4Nx9RHTVNLybAqIcmT8f

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 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\90a4863f512db849123fec82349360150733176aa4553f21fe7e7203bc4e9958.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4068
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\90a4863f512db849123fec82349360150733176aa4553f21fe7e7203bc4e9958.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2272
      • 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:4820
        • 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:4412
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4448
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 212
                6⤵
                • Program crash
                PID:3804
            • 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:2372
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2372 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4876
            • 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:1036
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1036 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 408 -p 4448 -ip 4448
      1⤵
        PID:1964

      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

        4eaf9b3a48166fb8e172b3a7f24579ff

        SHA1

        0f45af7ebcfc4e2a6fb9c6eded199411ef8de0ae

        SHA256

        6df30e165ee411a067f02df7637526554b5f4d69dc970f0d67d2ad5b78974d1b

        SHA512

        883f4c7db6a115cbe2c2618d882bb3731b60c5c8012f851beb73985703244e17b9e401c987fcfcd5fbc1f8c187a106ccc438004cdc2f0d0e0d745f9db0d2d338

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

        Filesize

        404B

        MD5

        339509dfa97aa94d30ae3fee54f82843

        SHA1

        6f4d2e83437a0b74e62d1bd3c76dc6187d2e4495

        SHA256

        0b22bc91bc3366d2a5d664a6df3d51df25225f576e8f0429f3baf54204440a51

        SHA512

        a2f6c19fb4fde34d0a6da1844ebec8f7d12a86fdf2fd53fc943be7efe0f7fde8ad36a0ca109ec29d5192044464336ab344bbcae8538f76c7b76bcc75788b7030

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9AE6AC69-C00D-11EF-B319-D6A59BC41F9D}.dat

        Filesize

        3KB

        MD5

        d0778d2209bfe9043b163c1ce5eb1209

        SHA1

        383e013db0886f42ddd0c1967e76fe49fe6cd4b7

        SHA256

        b06b9654b11f588dd7a82f3b317c6fccc18d3ddebcb572c4e94ae8328b3acad5

        SHA512

        8b91e303f23c12c709ac1fec969469e2782bacb689a0337c7d0110b4a88c840263a29ca61c069b07b3128fabf9a8fe768994ab3ecbf5cfa67c9827639ebd5451

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{9AE91000-C00D-11EF-B319-D6A59BC41F9D}.dat

        Filesize

        5KB

        MD5

        63e2be783b807a43a3e545fa85e8cc63

        SHA1

        3391688a10b256a727ea4257fcf85354447e306b

        SHA256

        9ea0b0139612d4fbbc7837c12ff1919b3cf2c97ed038a86dffd314abeb2ae73a

        SHA512

        8378ad7bef4a06f2d2698af50619ba7e1ba3a7af5ee231b115ee774a07c99de6a7f3fb2e37613b6972dcde4c0d0ffccf376c55a0be84ac08ac3b28282c3a1004

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver5B8.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

        247KB

        MD5

        bb0ce6d96fef4beabd43ece95d6a00a8

        SHA1

        465279b83362b977ec37f4f0d4229b8a0de213ae

        SHA256

        32612b60c987da1f50e8eb06426e492fb649d1d4de5f15335a70b1718a364e89

        SHA512

        c2b96fec8c24e3ffbc1e1d5f812a7e8d2673a322411fc7b9dee2f3a602eb9da798fa2c3b5e84c9c0df23bf6c41516cb28cbd067162ede502dbd8e2b1055b4447

      • memory/2272-0-0x000000006D280000-0x000000006D2D7000-memory.dmp

        Filesize

        348KB

      • memory/4412-25-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB

      • memory/4412-35-0x00000000778F2000-0x00000000778F3000-memory.dmp

        Filesize

        4KB

      • memory/4412-41-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4412-29-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4412-38-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4412-31-0x00000000778F2000-0x00000000778F3000-memory.dmp

        Filesize

        4KB

      • memory/4412-30-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/4412-37-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4412-36-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/4448-34-0x0000000000D60000-0x0000000000D61000-memory.dmp

        Filesize

        4KB

      • memory/4448-33-0x0000000000D80000-0x0000000000D81000-memory.dmp

        Filesize

        4KB

      • memory/4820-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-11-0x00000000001B0000-0x00000000001B1000-memory.dmp

        Filesize

        4KB

      • memory/4820-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4820-4-0x0000000000400000-0x0000000000437000-memory.dmp

        Filesize

        220KB