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Analysis

  • max time kernel
    189s
  • max time network
    113s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 23:21

General

  • Target

    c676aa1538b4c90343753ef45ae79dd53cfe62bc2afa16f3e98a2c34df5cc0f5.exe

  • Size

    743KB

  • MD5

    671379a24c0fa396444481d18d7f7a91

  • SHA1

    1fb8d5f156abc31aaf659f9e4f772e9d99e78eab

  • SHA256

    c676aa1538b4c90343753ef45ae79dd53cfe62bc2afa16f3e98a2c34df5cc0f5

  • SHA512

    4fb4464fc4127d78b127c248deea50e69e71176f24d301cabd71f0a536ebd17679abe9cbc52299d444f90f0c6811a0aa5b465931cf5d25363a975c3007a44b8a

  • SSDEEP

    12288:5nNhuBoY8SorxgmA+nlvVlEyJqcwwQlSWAu0pybGK+Ruson8F7c320wVOh5WCK/y:5PatCg7EPayJqcX7W00bGHPon8FI/wm7

Malware Config

Extracted

Family

cybergate

Version

2.6

Botnet

megahac

C2

megahac.sytes.net:1380

Mutex

***MUTEX***

Attributes
  • enable_keylogger

    true

  • enable_message_box

    false

  • ftp_directory

    ./logs/

  • ftp_interval

    30

  • injected_process

    explorer.exe

  • install_dir

    explorer

  • install_file

    server.exe

  • install_flag

    true

  • keylogger_enable_ftp

    false

  • message_box_caption

    texto da mensagem

  • message_box_title

    título da mensagem

  • password

    463d2f

  • regkey_hkcu

    win32

  • regkey_hklm

    win32

Signatures

  • CyberGate, Rebhip

    CyberGate is a lightweight remote administration tool with a wide array of functionalities.

  • Executes dropped EXE 3 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • UPX packed file 24 IoCs

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

  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • AutoIT Executable 2 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1244
      • C:\Users\Admin\AppData\Local\Temp\c676aa1538b4c90343753ef45ae79dd53cfe62bc2afa16f3e98a2c34df5cc0f5.exe
        "C:\Users\Admin\AppData\Local\Temp\c676aa1538b4c90343753ef45ae79dd53cfe62bc2afa16f3e98a2c34df5cc0f5.exe"
        2⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Users\Admin\AppData\Local\Temp\c676aa1538b4c90343753ef45ae79dd53cfe62bc2afa16f3e98a2c34df5cc0f5.exe
          "C:\Users\Admin\AppData\Local\Temp\c676aa1538b4c90343753ef45ae79dd53cfe62bc2afa16f3e98a2c34df5cc0f5.exe"
          3⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:2000
          • C:\Users\Admin\AppData\Local\Temp\GC.EXE
            "C:\Users\Admin\AppData\Local\Temp\GC.EXE"
            4⤵
            • Executes dropped EXE
            PID:1460
          • C:\Users\Admin\AppData\Local\Temp\SERVER.EXE
            "C:\Users\Admin\AppData\Local\Temp\SERVER.EXE"
            4⤵
            • Executes dropped EXE
            • Modifies Installed Components in the registry
            • Adds Run key to start application
            • Drops file in Program Files directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:1420
            • C:\Windows\SysWOW64\explorer.exe
              explorer.exe
              5⤵
              • Modifies Installed Components in the registry
              PID:1780
            • C:\Windows\SysWOW64\explorer.exe
              explorer.exe
              5⤵
              • Loads dropped DLL
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious use of AdjustPrivilegeToken
              PID:1892
              • C:\Program Files (x86)\explorer\server.exe
                "C:\Program Files (x86)\explorer\server.exe"
                6⤵
                • Executes dropped EXE
                PID:560

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\explorer\server.exe

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • C:\Program Files (x86)\explorer\server.exe

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • C:\Users\Admin\AppData\Local\Temp\GC.EXE

      Filesize

      156KB

      MD5

      793b4db2716db9cd85a373d5f037c470

      SHA1

      9c83fcdaf8f711d39d1e58ad2173c3cc94a575e6

      SHA256

      19f1e3a00e2c281c0a5f42652d1edca6769fc929e77ac59c4dc3d2aee7662b0d

      SHA512

      7bdff3755003e95f94ac99c29a180ee601626d2167200fee89e315a92127f55a04f1ab2244f0ff4e0e2fcf739ca75f063fab26bb9c827894bab7a984188fc0f2

    • C:\Users\Admin\AppData\Local\Temp\GC.EXE

      Filesize

      156KB

      MD5

      793b4db2716db9cd85a373d5f037c470

      SHA1

      9c83fcdaf8f711d39d1e58ad2173c3cc94a575e6

      SHA256

      19f1e3a00e2c281c0a5f42652d1edca6769fc929e77ac59c4dc3d2aee7662b0d

      SHA512

      7bdff3755003e95f94ac99c29a180ee601626d2167200fee89e315a92127f55a04f1ab2244f0ff4e0e2fcf739ca75f063fab26bb9c827894bab7a984188fc0f2

    • C:\Users\Admin\AppData\Local\Temp\SERVER.EXE

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • C:\Users\Admin\AppData\Local\Temp\SERVER.EXE

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • C:\Users\Admin\AppData\Local\Temp\XX--XX--XX.txt

      Filesize

      229KB

      MD5

      9c5e974c98a7d827f72bd02d34b4de54

      SHA1

      395c363b048c7363b428d096256204958da87008

      SHA256

      8c48563f3a0489c495e7ccdaefc032a226d9c53469cdb4809b5921d93dae5149

      SHA512

      2980c6127ffd6988d3f987b175605028387d58e024b144194a94b1dc3223ed3b33169a63c704018053531c4978b2b85f4dd06456f19a45820a31e165fb5d982f

    • \Program Files (x86)\explorer\server.exe

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • \Program Files (x86)\explorer\server.exe

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • \Users\Admin\AppData\Local\Temp\GC.EXE

      Filesize

      156KB

      MD5

      793b4db2716db9cd85a373d5f037c470

      SHA1

      9c83fcdaf8f711d39d1e58ad2173c3cc94a575e6

      SHA256

      19f1e3a00e2c281c0a5f42652d1edca6769fc929e77ac59c4dc3d2aee7662b0d

      SHA512

      7bdff3755003e95f94ac99c29a180ee601626d2167200fee89e315a92127f55a04f1ab2244f0ff4e0e2fcf739ca75f063fab26bb9c827894bab7a984188fc0f2

    • \Users\Admin\AppData\Local\Temp\SERVER.EXE

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • \Users\Admin\AppData\Local\Temp\SERVER.EXE

      Filesize

      296KB

      MD5

      b7573a514f192367be8e14dc56533e3d

      SHA1

      fe0ea08d9d4e8b9ab4d10a77e39a532591541db6

      SHA256

      7949549cd09abcb7629a5fd573291be5bd6e7fcda1f268a3e072ce067016d447

      SHA512

      a7f76c638f08f894c5265959abfcb1819bfb4c91dd4fe9ef2c457a809d520d7977fbf1884b7a72694e7b5ef706d1787d24beca09d8c4cb7b5daf3e6e171976d2

    • memory/560-126-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/560-128-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/1244-91-0x0000000024010000-0x0000000024072000-memory.dmp

      Filesize

      392KB

    • memory/1420-115-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/1420-97-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/1420-84-0x0000000000400000-0x0000000000465000-memory.dmp

      Filesize

      404KB

    • memory/1420-88-0x0000000024010000-0x0000000024072000-memory.dmp

      Filesize

      392KB

    • memory/1420-109-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/1460-127-0x0000000004DF5000-0x0000000004E06000-memory.dmp

      Filesize

      68KB

    • memory/1460-85-0x0000000000AE0000-0x0000000000B0E000-memory.dmp

      Filesize

      184KB

    • memory/1508-74-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/1508-71-0x0000000003C80000-0x0000000003D16000-memory.dmp

      Filesize

      600KB

    • memory/1508-55-0x0000000000400000-0x0000000000496000-memory.dmp

      Filesize

      600KB

    • memory/1508-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

      Filesize

      8KB

    • memory/1780-96-0x0000000073A31000-0x0000000073A33000-memory.dmp

      Filesize

      8KB

    • memory/1780-102-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/1780-104-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/1780-129-0x0000000024080000-0x00000000240E2000-memory.dmp

      Filesize

      392KB

    • memory/1892-125-0x0000000003900000-0x0000000003965000-memory.dmp

      Filesize

      404KB

    • memory/1892-114-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/1892-130-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/1892-116-0x00000000240F0000-0x0000000024152000-memory.dmp

      Filesize

      392KB

    • memory/1892-131-0x0000000003900000-0x0000000003965000-memory.dmp

      Filesize

      404KB

    • memory/1892-132-0x0000000003900000-0x0000000003965000-memory.dmp

      Filesize

      404KB

    • memory/1892-124-0x0000000003900000-0x0000000003965000-memory.dmp

      Filesize

      404KB

    • memory/2000-57-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-59-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-61-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-56-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-62-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-64-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-66-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-70-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-81-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB

    • memory/2000-72-0x0000000000400000-0x0000000000483000-memory.dmp

      Filesize

      524KB