Overview

overview

10

Static

static

10

stub.exe

windows7-x64

10

stub.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    stub.exe

  • Size

    469KB

  • Sample

    241203-kyfgbatpak

  • MD5

    52b30da6d3eeb564edbf295bd1bf4cdd

  • SHA1

    1cac726321f8aa11d5ba89264854aaf70ccd75fe

  • SHA256

    a466e005e900687100fef0e6f22cbab359eff61ed4721d2faa0759ea0b59203a

  • SHA512

    6b9eb6b49b07150bc49a4b288c08990661188aca94c98c9db558ffe07a059ce4d29fe4d7ed1881a97eb97487486ee99bd8a79bdb1e4e3e2218f6bcabb00419b2

  • SSDEEP

    12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSYn9:uiLJbpI7I2WhQqZ7Y9

Score
10/10
remcosremotehostdiscoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

me-intranet.gl.at.ply.gg:13055

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    SecurityHealthSystray.exe

  • copy_folder

    SecurityHealthSystray

  • delete_file

    true

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-OH5SD2

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    SecurityHealthSystray.exe

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      stub.exe

    • Size

      469KB

    • MD5

      52b30da6d3eeb564edbf295bd1bf4cdd

    • SHA1

      1cac726321f8aa11d5ba89264854aaf70ccd75fe

    • SHA256

      a466e005e900687100fef0e6f22cbab359eff61ed4721d2faa0759ea0b59203a

    • SHA512

      6b9eb6b49b07150bc49a4b288c08990661188aca94c98c9db558ffe07a059ce4d29fe4d7ed1881a97eb97487486ee99bd8a79bdb1e4e3e2218f6bcabb00419b2

    • SSDEEP

      12288:Wmnk7iLJbpIpiRL6I2WhSKQ9ZsfZQSYn9:uiLJbpI7I2WhQqZ7Y9

    Score
    10/10
    remcosremotehostdiscoveryevasionpersistencerattrojan

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • Remcos family

      remcos

    • UAC bypass

      evasiontrojan

    • Adds policy Run key to start application

      persistence

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks