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Analysis

  • max time kernel
    149s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    10/07/2024, 19:22

General

  • Target

    161808cf2c7e8288bbd15b60bdbd0afc4d568f5d0eebc959278ed25eb1f04c93.exe

  • Size

    45KB

  • MD5

    cc60b3a26d75bd3698cf62e8bb0c73e9

  • SHA1

    d8624de6dcc1c8fd70f4db8435589244e965c9cd

  • SHA256

    161808cf2c7e8288bbd15b60bdbd0afc4d568f5d0eebc959278ed25eb1f04c93

  • SHA512

    d49b91b4bd1037c4c61932a70f55fbeb8267408efaade11e4de2c4b75ba3a179c0994ee94e75a150b3756c08ed72c0c8cbbd064196aaccd46a7407cd964a619b

  • SSDEEP

    768:WAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGVAQvKMb7r1:RUNHFKQbIkHvGkAFu7J

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Drops file in Drivers directory 1 IoCs
  • Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Modifies WinLogon 2 TTPs 5 IoCs
  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:432
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1196
        • C:\Users\Admin\AppData\Local\Temp\161808cf2c7e8288bbd15b60bdbd0afc4d568f5d0eebc959278ed25eb1f04c93.exe
          "C:\Users\Admin\AppData\Local\Temp\161808cf2c7e8288bbd15b60bdbd0afc4d568f5d0eebc959278ed25eb1f04c93.exe"
          2⤵
          • Loads dropped DLL
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1572
          • C:\Windows\SysWOW64\rmass.exe
            "C:\Windows\system32\rmass.exe"
            3⤵
            • Windows security bypass
            • Boot or Logon Autostart Execution: Active Setup
            • Drops file in Drivers directory
            • Event Triggered Execution: Image File Execution Options Injection
            • Executes dropped EXE
            • Loads dropped DLL
            • Windows security modification
            • Modifies WinLogon
            • Drops file in System32 directory
            • Drops file in Program Files directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2184
            • C:\Windows\SysWOW64\rmass.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:3040

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Windows\SysWOW64\RECOVER32.DLL

        Filesize

        5KB

        MD5

        2b2c28a7a01f9584fe220ef84003427f

        SHA1

        5fc023df0b5064045eb8de7f2dbe26f07f6fec70

        SHA256

        9e00af53b1d0c0f5270d94a666d95aa7b4dcb9fea49487c210c055c9dcfcc9eb

        SHA512

        39192a8a91dec1abff25af8dac0cf39da4dfd51b3fb4f1ef0b4e776185d4280fbe8387c2ea778da7bbf2ce288b0bce4d23cbe8d9e87bbd250159044f5adbac78

      • C:\Windows\SysWOW64\ahuy.exe

        Filesize

        47KB

        MD5

        1928d849a4e49b47b2a82837429562f7

        SHA1

        49427a11fe1ece01da2d89ed4017560bc1c23df1

        SHA256

        6e0f4072531875a058e569d05d3b363273a7566b9d6b84ebb12de14c183b66f3

        SHA512

        8258761c751b323c3c852f314afba2d4c766d3f1962f0d54d7c646c59a995b13fbb684a34967c816c18602679e9bdb96b2ea1a135d67bcbfc536557793b51452

      • C:\Windows\SysWOW64\ntdbg.exe

        Filesize

        48KB

        MD5

        e65b1b2a36d600797f5d5ce8d65767f3

        SHA1

        375bce3062039c754bb9a3f213a3e4d8fd625198

        SHA256

        5b3663d9563ef09c1a9083dcfa383ca21c9bb264abe10ed6bd91f4ab59e37f27

        SHA512

        0917de847afd453bbe038a1258664f00bc46ce1d1aca619a7910b4da95bd7b9b99e31e3bbc345a6a3e1b152fe4ada095593a9b515a8d5f49fff923219f310abd

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        45KB

        MD5

        cc60b3a26d75bd3698cf62e8bb0c73e9

        SHA1

        d8624de6dcc1c8fd70f4db8435589244e965c9cd

        SHA256

        161808cf2c7e8288bbd15b60bdbd0afc4d568f5d0eebc959278ed25eb1f04c93

        SHA512

        d49b91b4bd1037c4c61932a70f55fbeb8267408efaade11e4de2c4b75ba3a179c0994ee94e75a150b3756c08ed72c0c8cbbd064196aaccd46a7407cd964a619b

      • C:\Windows\System32\drivers\etc\hosts

        Filesize

        1KB

        MD5

        b10b13206b0f2cf3968050072f6979bf

        SHA1

        699db21ba9cecf3f13ac3d76e22cfa41aa94da80

        SHA256

        0eef3217095cb97b695c434e74d6314bf9e869a013d6e9c88e58c34576a276b4

        SHA512

        d33bfd931be6676539507a69101d99fa4c5ef36b12422bd11f063b9b6a47b7444f6c4ad5f35e044714fdb872e96cd9fddf049e8329af1219483887f6ac5f4a5d

      • memory/1572-9-0x0000000000400000-0x000000000040E000-memory.dmp

        Filesize

        56KB

      • memory/2184-55-0x0000000000400000-0x000000000040E000-memory.dmp

        Filesize

        56KB

      • memory/3040-56-0x0000000000400000-0x000000000040E000-memory.dmp

        Filesize

        56KB