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Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 21:30

General

  • Target

    1ec2f1f9e9c444691b6ce3cf72a74027edae0fbec88c9bf9dfc3178e723fcb31.dll

  • Size

    348KB

  • MD5

    0e68fc1dc87ebe15ecd18a18256fea40

  • SHA1

    ea6465e474d22d39b0362b1741dec5c7f76e6dbe

  • SHA256

    1ec2f1f9e9c444691b6ce3cf72a74027edae0fbec88c9bf9dfc3178e723fcb31

  • SHA512

    8e76fc709ce006c4925a07069e4d59b00d5709ba00bdb8a02ecbbbae0ec647473ffafc7cbe116d7179cb30903d76238974214f912a9d55f31c686c24bf3f6d58

  • SSDEEP

    6144:D3png1PL0i+tZBDMT025JD+dc584xDlwfyfjKe6H0D5Y:DZngJLO3MT025JD+o8CCOn6H0D5

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 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
  • Modifies Internet Explorer settings 1 TTPs 28 IoCs
  • Modifies registry class 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1ec2f1f9e9c444691b6ce3cf72a74027edae0fbec88c9bf9dfc3178e723fcb31.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\1ec2f1f9e9c444691b6ce3cf72a74027edae0fbec88c9bf9dfc3178e723fcb31.dll
      2⤵
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4720
      • C:\Windows\SysWOW64\regsvr32Srv.exe
        C:\Windows\SysWOW64\regsvr32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:4932
        • 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:4828
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:4900
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4900 CREDAT:17410 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3400

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

    Filesize

    471B

    MD5

    0ef90204485649be625ea2be1b9018fb

    SHA1

    28fbc0852140ec51d0c097a4962a160afa4d754b

    SHA256

    c8028acd9a8c8c795b87cf835fc3182d003264608f161baa0ca020711b22bca0

    SHA512

    b8bbba0dcc6cb6f87efb47a605953c93fcf93c5a65520b822ebfee25754632d6bb66c2a946f457e1e40a92556683ddb9d14f2703782833e12d7e37bb3b7fcec5

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

    Filesize

    434B

    MD5

    7d10c2ae18a5a1ae92f95b0241585d67

    SHA1

    df82439225ade33335b9bc03b03ee27e7dd06036

    SHA256

    6e27f5b65126b3ad399ce90247fd1b4c95ce7e5f32b277637c42458f65a2745f

    SHA512

    91a552b52775904033387d2a4d89d1f68161e99be9387bdba14240e9f4f5cd7843e1243a357e441b47cd046ddb693356b2e905dfdcd521096229eed3a167edd8

  • C:\Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • C:\Windows\SysWOW64\regsvr32Srv.exe

    Filesize

    55KB

    MD5

    ff5e1f27193ce51eec318714ef038bef

    SHA1

    b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

    SHA256

    fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

    SHA512

    c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

  • memory/4828-140-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4828-142-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4828-141-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4932-138-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB