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Analysis

  • max time kernel
    140s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/07/2024, 05:37

General

  • Target

    be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b.dll

  • Size

    92KB

  • MD5

    6ab9c7292fe2829ca577e54bef18619b

  • SHA1

    2a6c3403c3fac73da0c848a06818daae3c722182

  • SHA256

    be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b

  • SHA512

    6f830c9b8984f4dfc4f46c2a3ea06da1d0205f1f3a9467d5091153807f6b0874d5bf03d2039fc5778d3819465e02771ba6e3b9cd31ced9e777eaaf0d82e5259c

  • SSDEEP

    1536:ymg4T4vONoRohd42hcGliEbPgQpZiX+XBFTmtXHVR0xDhjt:yjL8oRQNrPK+PTmV1R8h

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 1 IoCs
  • 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 32 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\be4f04a6cb1df55610f461e3e05d81daebe75cbab021746e0cbf6b05389ff02b.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4652
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2584
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2596
          • 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:1480
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1480 CREDAT:17410 /prefetch:2
              6⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3688
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4652 -s 608
        3⤵
        • Program crash
        PID:2400
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4652 -ip 4652
    1⤵
      PID:4468

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF983.tmp

      Filesize

      15KB

      MD5

      1a545d0052b581fbb2ab4c52133846bc

      SHA1

      62f3266a9b9925cd6d98658b92adec673cbe3dd3

      SHA256

      557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

      SHA512

      bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\A4F1OTIC\suggestions[1].en-US

      Filesize

      17KB

      MD5

      5a34cb996293fde2cb7a4ac89587393a

      SHA1

      3c96c993500690d1a77873cd62bc639b3a10653f

      SHA256

      c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

      SHA512

      e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

    • C:\Windows\SysWOW64\rundll32Srv.exe

      Filesize

      55KB

      MD5

      ff5e1f27193ce51eec318714ef038bef

      SHA1

      b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

      SHA256

      fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

      SHA512

      c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

    • memory/2584-5-0x0000000000510000-0x000000000051F000-memory.dmp

      Filesize

      60KB

    • memory/2584-4-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2584-8-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2596-12-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2596-15-0x0000000000670000-0x0000000000671000-memory.dmp

      Filesize

      4KB

    • memory/2596-14-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/2596-16-0x0000000000400000-0x000000000042E000-memory.dmp

      Filesize

      184KB

    • memory/4652-1-0x0000000010000000-0x0000000010017000-memory.dmp

      Filesize

      92KB

    • memory/4652-18-0x0000000010000000-0x0000000010017000-memory.dmp

      Filesize

      92KB