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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 21:59

General

  • Target

    63f12f4bf0e169fb16f99e02ccd4242c435e5fa4103fd96f37cce1982f200c3e.exe

  • Size

    21KB

  • MD5

    215b750f5dd4ae4a4719ed47d167efb8

  • SHA1

    1bf6746df699e25a0a9bb756785f0aae7fb9ec65

  • SHA256

    63f12f4bf0e169fb16f99e02ccd4242c435e5fa4103fd96f37cce1982f200c3e

  • SHA512

    684ed443ffc4c86689388fbd14880e6ada066b0f04b5849952863ef5dfb5189ded342be956da3fffc04965e1a90be545a3c26217272630e2cfb4a0a8794af9d7

  • SSDEEP

    384:UBWoC5GDr6wc/w3HgM6vDUTAXBGCVf4WVlFvX8Mb7a6y:rRkiLw3HsDSARGG/MMb7ry

Malware Config

Signatures

  • Windows security bypass 2 TTPs 4 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Modifies Installed Components in the registry 2 TTPs 4 IoCs
  • Sets file execution options in registry 2 TTPs 3 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 7 IoCs

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

  • 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:612
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3456
        • C:\Users\Admin\AppData\Local\Temp\63f12f4bf0e169fb16f99e02ccd4242c435e5fa4103fd96f37cce1982f200c3e.exe
          "C:\Users\Admin\AppData\Local\Temp\63f12f4bf0e169fb16f99e02ccd4242c435e5fa4103fd96f37cce1982f200c3e.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3268
          • C:\Windows\SysWOW64\rmass.exe
            "C:\Windows\system32\rmass.exe"
            3⤵
            • Windows security bypass
            • Drops file in Drivers directory
            • Modifies Installed Components in the registry
            • Sets file execution options in registry
            • Executes dropped EXE
            • 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:1972
            • C:\Windows\SysWOW64\rmass.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:4028

      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

        23KB

        MD5

        b89b152524c8cc6d6664891c530dcca0

        SHA1

        338010e37b8816b3b86885560257d3b8701a6c07

        SHA256

        e76e7051df62d1aa7cee8d8f67664ef11acae448bbc9c4c77832f7c57c1b66eb

        SHA512

        d6533bf9c2ebde013895a6612c1484de13ee5554f299c04a927d86427c5f6a0512c449109a28ffb5c4299a3e97c6f73db591fd73112d31548b43e673593b0969

      • C:\Windows\SysWOW64\ntdbg.exe

        Filesize

        24KB

        MD5

        b04e84da3fa8bf91a7acadaaaaf807d4

        SHA1

        98ee2964f2ee4eba246f185383aef717e93fba16

        SHA256

        b0bcc1ad50b40675777a86fe0bf06def932fe051b7db1798268ccf5337cbb1c4

        SHA512

        b9acc2acbacae0d4c229963e0fba83b70c2c7f64a39f133dcbe383d9a14990c305e15d110eed5a4f44d254c86ad2b132e54b71b29e96d859888d1bd1b76b9ad8

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        21KB

        MD5

        215b750f5dd4ae4a4719ed47d167efb8

        SHA1

        1bf6746df699e25a0a9bb756785f0aae7fb9ec65

        SHA256

        63f12f4bf0e169fb16f99e02ccd4242c435e5fa4103fd96f37cce1982f200c3e

        SHA512

        684ed443ffc4c86689388fbd14880e6ada066b0f04b5849952863ef5dfb5189ded342be956da3fffc04965e1a90be545a3c26217272630e2cfb4a0a8794af9d7

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

        Filesize

        1KB

        MD5

        6f47b62de25d1745e296a06b3f98ed19

        SHA1

        a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

        SHA256

        15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

        SHA512

        dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

      • memory/1972-10-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/1972-53-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/3268-0-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/3268-7-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/4028-19-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB

      • memory/4028-54-0x0000000000400000-0x0000000000411000-memory.dmp

        Filesize

        68KB