Analysis

  • max time kernel
    91s
  • 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, 14:23

General

  • Target

    ec11e1acbe4ec4242fee3f6046366c0658eba7d7e610dd99526edab5dfca5ba8N.dll

  • Size

    558KB

  • MD5

    b2e9b51d84d265f837b47911471f20c0

  • SHA1

    3bfc4a924d380bf26f5c5846161155b5916306d0

  • SHA256

    ec11e1acbe4ec4242fee3f6046366c0658eba7d7e610dd99526edab5dfca5ba8

  • SHA512

    c7e763c2f8bf06de2487c960fcea4c1baa4a5156d0ae464e818652c897faf36cc58539786fde686127fda405fb90caf56bc1bc6652cdb818d5a69afd947cd0e7

  • SSDEEP

    12288:zh8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNzfld1Z:z8F+Pzr/Hfp4MIYwZckMQmzfZZ

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 15 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 33 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ec11e1acbe4ec4242fee3f6046366c0658eba7d7e610dd99526edab5dfca5ba8N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ec11e1acbe4ec4242fee3f6046366c0658eba7d7e610dd99526edab5dfca5ba8N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3624
      • 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:3628
        • 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:4816
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:2000
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2000 -s 204
                6⤵
                • Program crash
                PID:3856
            • 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:2284
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2284 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3136
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              PID:3208
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2000 -ip 2000
      1⤵
        PID:4388

      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

        1c0433aea172a5ee35a240932d71b143

        SHA1

        0f61a0aae190837ce07e669481f08d2f93076735

        SHA256

        4e7d334dd26d3fd81385b02684ec8181bd54c8a1619440a1380abb0369a10f5e

        SHA512

        dffaaf94604b46e63223980090e4d692de02aaa46c259dec293000d6552aa3f3f74f52b38cbf20185da229698c6eb3a9ad21e17ce67e35e13476fe51addb4bf8

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver464B.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

        123KB

        MD5

        2cc65cb5dea68dcb6aefbce0d78a3fa3

        SHA1

        f05fd2ad722e4feb9f90fec42081b00acd5b3810

        SHA256

        a461da98eb645a7df5450ef0ac644674d32a557ce94b2529bc3fd8b896143ef3

        SHA512

        e67951b2dbad43c143e6a7f9058dccbba669913804ed8c74720a5694edd1e2a3021c98affa68b0565b2a266ec5132b531d79eeb41989bc1c418d5bb8842b7db5

      • memory/2000-38-0x0000000000B60000-0x0000000000B61000-memory.dmp

        Filesize

        4KB

      • memory/2000-39-0x0000000000B40000-0x0000000000B41000-memory.dmp

        Filesize

        4KB

      • memory/3624-0-0x0000000010000000-0x0000000010091000-memory.dmp

        Filesize

        580KB

      • memory/3628-17-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-7-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/3628-22-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/3628-6-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/3628-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-4-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/3628-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3628-11-0x00000000001F0000-0x00000000001F1000-memory.dmp

        Filesize

        4KB

      • memory/4816-36-0x0000000077792000-0x0000000077793000-memory.dmp

        Filesize

        4KB

      • memory/4816-33-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4816-35-0x0000000000430000-0x0000000000431000-memory.dmp

        Filesize

        4KB

      • memory/4816-40-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4816-41-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4816-42-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4816-44-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/4816-43-0x0000000077792000-0x0000000077793000-memory.dmp

        Filesize

        4KB

      • memory/4816-45-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4816-46-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4816-34-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4816-30-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4816-24-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4816-25-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB