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Analysis

  • max time kernel
    149s
  • max time network
    140s
  • 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, 23:57

General

  • Target

    6f6d1a905b7106996ffad17bba7d7980_NEIKI.exe

  • Size

    66KB

  • MD5

    6f6d1a905b7106996ffad17bba7d7980

  • SHA1

    2ea3e6fe060788d9bfe09ac0461ab947081ec0f3

  • SHA256

    a0968ce30f7a79faf012fc9cadf2eff6eb858eb626ed5555891933102f6e0e2b

  • SHA512

    c0afe1f0d27c4f23b53e0c792f5962a7a52b9d981d361527f382a71be1c48fdcee8b00c26e5e088baf869ffaff4a2129f1e00dc7e58994458d0bf76ffafb0004

  • SSDEEP

    1536:jAoDBgDkD9aiWyECoMdVJc5w2BPEF4tsk:8yZaRyECoMdVJc55Ketsk

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 4 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 1 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\6f6d1a905b7106996ffad17bba7d7980_NEIKI.exe
          "C:\Users\Admin\AppData\Local\Temp\6f6d1a905b7106996ffad17bba7d7980_NEIKI.exe"
          2⤵
          • Drops file in System32 directory
          • Suspicious use of WriteProcessMemory
          PID:1096
          • C:\Windows\SysWOW64\rmass.exe
            "C:\Windows\SysWOW64\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:2592
            • C:\Windows\SysWOW64\rmass.exe
              --k33p
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:3620

      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

        66KB

        MD5

        63545a49e6e99c08a379f242820b819a

        SHA1

        1bd46dd62dc5d338c58fad3bd8ef824cf58d3c86

        SHA256

        3029dac21fadf6eb0925eea45433bace331f0c2b052e61c5408298e6ecf5732a

        SHA512

        756fe911f0fc3c9306956c40d1214745b8adcfbfce4c0642cee0279a7f7a3081c3ae96888d683c73173c6147ec0bec41e9271b69875b1ff275a8d133033f4109

      • C:\Windows\SysWOW64\ntdbg.exe

        Filesize

        67KB

        MD5

        e675683dd21a79057c13edbf02ac1343

        SHA1

        15da3f1bf6296529f3e3b3f6da236b5ebcad2753

        SHA256

        1c044a117443560037af1403df5cddc27c32305cebbeca0b751884ded0491b7b

        SHA512

        b2b47d8b1cb2eeefa887c6e09f4e1a2ee0d5be3fdff72a160db692c1a500652edb693fcd0f3606720cea5a45b3111b231aae49adc902ac6376fa35ba3cc6cb88

      • C:\Windows\SysWOW64\rmass.exe

        Filesize

        63KB

        MD5

        76632a6af9e351227900b0743a9f83e7

        SHA1

        ea9ebebd087bc3eed62ae56e1079172d63e7f530

        SHA256

        41d06f70a8d600dd9684b38efd09e56b74432e5823f88d00cdd7a170bd8b782d

        SHA512

        92e95a35569b6571c3d7a781560e61739fcce09092c38646ccc142d2e328f8ba528e33377f9882644d002ec257e3a0d9ae2c2dd22dbc06d365800e2b852de44a

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

        Filesize

        1KB

        MD5

        6f47b62de25d1745e296a06b3f98ed19

        SHA1

        a688bb35a4c8a5cc198985d624a1b5a6ac5b9f6f

        SHA256

        15c7218eb9cef5fa0573db657b15ce3a5f0e0609f1166df8098ca7152df505b4

        SHA512

        dea26fff8060f44bf20fe4fff2ecbacf428727f10c0f5886fb4813e28fce9cbc3d088337c84edd9857b18514c83f1bb1cf0f51518aaecef09f30e921f4d758d7

      • memory/1096-3-0x0000000000400000-0x0000000000403000-memory.dmp

        Filesize

        12KB

      • memory/2592-5-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/2592-48-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB

      • memory/3620-49-0x0000000000400000-0x0000000000412000-memory.dmp

        Filesize

        72KB