Extracted

• • Target
    ret.exe
  • Size 258KB
  • SHA256 f8c4193b1cb25b74e1c5ab43baddb70c1c48a014e3cc0d211f0c7949fb4dd35c
  • MD5 33914a12da1ef51bd213b2f7a68e6958
  • SHA1 c3d01b941af6eea356d556ac945a97c40cea2630
  • SHA512 0f43ea4cb59a439e41ad05c2fd812d9ff96c9694ebb14cd82dcdcdda01a815acfdff7c0ae41c89694b6cad35f8a961e3b76e2e18816c5a3f56221d0aa44f694b
  • SSDEEP 6144:Ozjx/Vz9/5bTgVziHzZnSKrCbYMEOby8Qq:OzjhVh/5/gVziHlBrCbYx8t
  • TLSH
    T11D443966F69000E6D4BE42358CA35B0267B6F4361721EBEF0B95585D3F637E08D29BA0
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  bootkitvictimdefense_evasiondiscoveryexecutionnjratpersistencetrojan

  • Family: njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat

  • Sets service image path in registry

    This determines the executable launched when a service starts. It can be used to establish persistence.

    persistence

  • Checks BIOS information in registry

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings

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

  • Executes dropped EXE

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Enumerates connected drives

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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