Extracted

• • Target
    MasonClient.exe
  • Size 49KB
  • SHA256 996f552ae0e7baad58cbb4437535aa0bfea6dcfd5e131388d690d6ba3dc78b5e
  • MD5 b7c208e9dc6b67c0eab0f9e3f850c6c0
  • SHA1 8b22fdfd8f59d4fa9902a086710535cbad6a9f92
  • SHA512 59ed216ef07cb01d521abe231fd2f16d5ab365e66beb57eac03e55a1ae7228ae8a3bca2b1c0fb8c5fb243ea748ac3b1b36ada64ec817a492417830d10c765acb
  • SSDEEP 1536:NLlLEuP2tUOX6UfU87vUMp2oOZ5XOcGXOcNXOcMXOcFXOcddgxUObUk+HmCemPqp:NJLEuP2tUOX6UfU87vUQ2oOZ5XOcGXOu
  • TLSH
    T14A33E78DE7D54121D6BF5AF119B31208C3B07AD38816C66F6CD845CB2B2BB988641FE7
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  bootkitdefense_evasiondiscoveryexecutionneptuneratpersistencetrojan

  • Detects NeptuneRAT stealer

  • Family: NeptuneRAT, MasonRAT

    NeptuneRAT aka MasonRAT is a trojan written in C#.

    trojanneptunerat

  • Disables Task Manager via registry modification

    defense_evasion

  • Checks computer location settings

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE

  • Adds Run key to start application

    persistence

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Writes to the Master Boot Record (MBR)

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence

  • Drops file in System32 directory

  behavioral1behavioral2