Analysis

  • max time kernel
    123s
  • max time network
    165s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 12:11

General

  • Target

    792911ce7517bb551f70b742670027dc8b7f7d32ad8bece69d4955ce3b025ab8.dll

  • Size

    436KB

  • MD5

    1400e52c60ef262383ef383e3a210ca0

  • SHA1

    cd9ebdc9f5bdda25e6ac1e33c7636163478ecde0

  • SHA256

    792911ce7517bb551f70b742670027dc8b7f7d32ad8bece69d4955ce3b025ab8

  • SHA512

    0111087450799b0ced126adca9fb79627855282f2edc4bfe0575a93b2325c25fb85918049084d12472eda1c0dc404e9eead6d0acc8de9706951a68ad6f6d11d4

  • SSDEEP

    12288:Oeco91URn3JFaCCCCCCCCClvCCCCCG1CCCCCCCCCCCCCCCCCCC1wlVHkCCCnkG6:Oeco9WRZim

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 8 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\792911ce7517bb551f70b742670027dc8b7f7d32ad8bece69d4955ce3b025ab8.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1980
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\792911ce7517bb551f70b742670027dc8b7f7d32ad8bece69d4955ce3b025ab8.dll,#1
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1976
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:908
        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
          "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:976
          • 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:1400
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1400 CREDAT:275457 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:1984

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • C:\Program Files (x86)\Microsoft\DesktopLayer.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\GHQAW1R6.txt

          Filesize

          608B

          MD5

          bcd1764f968ef850d2d903e080a488d3

          SHA1

          e894e8eee2176e2e4414112ee6d55f0520a50811

          SHA256

          171c1d22fb9b68e20acb8fa72d43d3712f884d28be79107a7ce745ed62be19fe

          SHA512

          001ac3c8734588b0f7b5a130a7f6e3e9e041b0fb672b3cd0963bc148f4b2a6fd8e90159c798e1f600ce93b79be4a917bec26413c00c2f5af476ff8b73e7b29ad

        • C:\Windows\SysWOW64\rundll32Srv.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • C:\Windows\SysWOW64\rundll32Srv.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • \Program Files (x86)\Microsoft\DesktopLayer.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • \Windows\SysWOW64\rundll32Srv.exe

          Filesize

          55KB

          MD5

          ff5e1f27193ce51eec318714ef038bef

          SHA1

          b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

          SHA256

          fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

          SHA512

          c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

        • memory/908-65-0x0000000000400000-0x000000000042E000-memory.dmp

          Filesize

          184KB

        • memory/908-70-0x0000000000400000-0x000000000042E000-memory.dmp

          Filesize

          184KB

        • memory/976-69-0x0000000000400000-0x000000000042E000-memory.dmp

          Filesize

          184KB

        • memory/1976-63-0x0000000000400000-0x000000000042E000-memory.dmp

          Filesize

          184KB

        • memory/1976-61-0x0000000010000000-0x000000001006E000-memory.dmp

          Filesize

          440KB

        • memory/1976-55-0x0000000075831000-0x0000000075833000-memory.dmp

          Filesize

          8KB