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Analysis

  • max time kernel
    82s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/11/2022, 10:52

General

  • Target

    69fe022d905d986ce7eac882e8fa0d4a9c4ee2f58211432492ccc5f03342217d.dll

  • Size

    1.1MB

  • MD5

    20458828305fc076d1692d10ffe85310

  • SHA1

    e6e98759a2adcbfb485afea3bbd011735595a61e

  • SHA256

    69fe022d905d986ce7eac882e8fa0d4a9c4ee2f58211432492ccc5f03342217d

  • SHA512

    58170ea8780cb892dba27a6322e56027f08055fc25fb940c17a35d5653d043ad586d3707c2d1cf2cfd0c25e9c4deb9deacd981980f010777667041ff8283c63d

  • SSDEEP

    24576:L1dxBPCNuIDyCldvK5Yc6RMpMXwmIwYS0pD:hkhyClJciRMpMXwmILSa

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
  • Modifies Internet Explorer settings 1 TTPs 28 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\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\69fe022d905d986ce7eac882e8fa0d4a9c4ee2f58211432492ccc5f03342217d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1772
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\69fe022d905d986ce7eac882e8fa0d4a9c4ee2f58211432492ccc5f03342217d.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1300
      • C:\Windows\SysWOW64\rundll32Srv.exe
        C:\Windows\SysWOW64\rundll32Srv.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of WriteProcessMemory
        PID:4752
        • 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:2236
          • 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:2580
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2580 CREDAT:17410 /prefetch:2
              6⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:2784

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

    6df395096ecd4495391458b01010ecb2

    SHA1

    2f1dc39b55265fd6219172e40362c1240506470a

    SHA256

    6439a7a722864b1920d0307e0fb2eb95207b22010005086b5856646a51f2a7e0

    SHA512

    eb333fbf74de85ca8bb66dc1c286f71d744e929e614bd056b73fa5161f26e89ef5028d4f729f02de3438ef519bc74968cb0c25428a880efe523121182bb65803

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

    Filesize

    434B

    MD5

    47e223dfc0a6feac4d423c9a2a6e04d2

    SHA1

    9e541bb184f7e1ac4492d52f996249b35a864a83

    SHA256

    c23a14f2e40a1f9258e406d8ae2a4251b7cbc93bd245b46195e61fe8685dd443

    SHA512

    6a0dbf3f986d3bfb1a79656145dc0c9f62da9fd5265e0a2245d0978b4f08b02cfc4612a01b5c6a0555cd98cf035c9e8e3836887b440733aee70c736ba0834d67

  • 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

  • memory/2236-141-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4752-136-0x0000000000400000-0x000000000042E000-memory.dmp

    Filesize

    184KB

  • memory/4752-138-0x00000000004B0000-0x00000000004BF000-memory.dmp

    Filesize

    60KB