Extracted

• • Target
    MasonClient.exe
  • Size 48KB
  • SHA256 67d5dbfb6f6970c37d497a53e670ea13c4275f8b957845f99e25147ab3a2db07
  • MD5 08f720a8ef00ef8fa9b64bac2f564d93
  • SHA1 f7dbb8c251b5ac5f0ece829f1a201fd639c68eb1
  • SHA512 42cb50484252cef06b0442c120099b77266bb6ee35d6a565b6d0b811bec771c372f7e5937da23c455a48f0e5ba370151ed672c9f50c2186b31245765c238624f
  • SSDEEP 1536:sQApbtUMzGU1UKq2U6yM0x+hXOcuXOcxXOclXOcIXOcAhmiUOHUk+am1ZmhXOc01:sQApbtUMzGU1UKq2UpVx+hXOcuXOcxXm
  • TLSH
    T1C423C6CDA7D55121D6BF5EB119B31249C3B07AD34906C66F7CD801CB2B2BB988681BE3
  • 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

  • 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

  behavioral1