Extracted

• • Target
    MasonClientgfhfh.exe
  • Size 49KB
  • SHA256 bd7691de7afab1b39e9c5412d0ed2f8a0b6a55286ac7596ff3139853bb44e090
  • MD5 e812f882ee5d254c06ecaf0fb0d55e4b
  • SHA1 ae68dfc0b1ec9b71364e0b9ef69ad7ddcaee1829
  • SHA512 462d806c163ec53874d0ddb0b255d4cf2005745860d9f8d0556feb766b757b648f93ca7933d42e8481a9eaf02c6de6e9437265fc1b198b69be8c459e7753f939
  • SSDEEP 1536:6BFKwLKTXgLMOo/QW12DwUBa1JELZbUEW15JbO5s:6BFKCuXgLMOo/QW1ewUBa1JElbUJJbOe
  • TLSH
    T13933D69CA3D84131E0BF56B22E77124853B4AE938466D79F7CC444CA2727B99CA41EF3
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  bootkitdefense_evasiondiscoveryneptuneratpersistencetrojan

  • 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

  • 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