Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/05/2024, 12:41

General

  • Target

    f2c5835996b347d8db9621bd4e5de4d1_NEIKI.exe

  • Size

    63KB

  • MD5

    f2c5835996b347d8db9621bd4e5de4d1

  • SHA1

    16e6f96e032425aab38b009c3539e8e408910264

  • SHA256

    9b134817c6265a60d82c47277cf06b3c1cb495f6f75faade94e437032f2a5b97

  • SHA512

    8889a66d02e88160385b767cac8d882ca0897dc1ec204789ba6a48579bbb8719f43dd1c07689e553a0d105f6a3c086e06865054af0172ed32a984f37bdb6f42f

  • SSDEEP

    768:rAUJmQCcmLCXQq6fsKiJYsIkjJVzqsVG5kuGKQLddOW/Y4Wv0eKIs88:sUNHFKQbIkHvGMdOP4wC

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 6 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:616
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:3520
        • C:\Users\Admin\AppData\Local\Temp\f2c5835996b347d8db9621bd4e5de4d1_NEIKI.exe
          "C:\Users\Admin\AppData\Local\Temp\f2c5835996b347d8db9621bd4e5de4d1_NEIKI.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4788
          • 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:3876
            • C:\Windows\SysWOW64\rmass.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:1800

      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

        65KB

        MD5

        49934a04249987aca13366677e45d11c

        SHA1

        b6ed33b3b7b3012c442883fbe17f5584c2c8e81d

        SHA256

        eaee5839e49f71b0f5ff12863a08410e423e0af1b594724cae75241d5755da14

        SHA512

        979b60b380ddefc2ea9a5038f99ea134ea4dbe094add21eaab1777fe9e728e6d3a1721d1dc1452e59a0a6b9838d698c713d0efd27cd0ea44f6dbce81bfb93994

      • C:\Windows\SysWOW64\ntdbg.exe

        Filesize

        66KB

        MD5

        a5ca2b6f53dc54634e85524af3dcd2b5

        SHA1

        8303ec5eb7e9bcbff7e6d0062da10255eddea2c0

        SHA256

        b09e42971543ae3483cd42983c291f6d4940e57d3dbedd635bc8d0b0eb1ff798

        SHA512

        dd0ba37b2d68647e389d47a49efd36eebcbae2a560c0ba6346d36e5710af6073df6fd886e3fedb5bfdbbc01950a474f55b48ae071195573bdd3f3077d24e13d7

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        63KB

        MD5

        f2c5835996b347d8db9621bd4e5de4d1

        SHA1

        16e6f96e032425aab38b009c3539e8e408910264

        SHA256

        9b134817c6265a60d82c47277cf06b3c1cb495f6f75faade94e437032f2a5b97

        SHA512

        8889a66d02e88160385b767cac8d882ca0897dc1ec204789ba6a48579bbb8719f43dd1c07689e553a0d105f6a3c086e06865054af0172ed32a984f37bdb6f42f

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

        Filesize

        1KB

        MD5

        6f47b62de25d1745e296a06b3f98ed19

        SHA1

        a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

        SHA256

        15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

        SHA512

        dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

      • memory/1800-18-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/3876-8-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/3876-52-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/4788-0-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/4788-7-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB