Overview

overview

10

Static

static

10

VAYSAO.exe

windows10-2004-x64

10

VAYSAO.exe

windows11-ltsc_2024-x64

10

Sharing

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General

  • Target
    VAYSAO.exe
  • Size 646KB
  • Sample261109-hc9f6adb67
  • SHA256 39f004b58ebdf26490e7310a483b8d50ce85302c958cd2d870dd27e1b393bd78
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
remcosau88discoverypersistenceratsuricata

Malware Config

Extracted

Family

  • remcos

Version

  • 7.3.1 Pro

Botnet

  • au88

C2

  • tga95.games:443

  • uy88.net:443

  • bigslot855.vip:443

  • xx8.loans:443

  • member.noboncos.co:443

  • ww38.darkfox.me:443

  • digitalconsulting.techvmc.co.in:443

  • e390a.com:443

  • 32win23.pro:443

  • b52club.bio:443

  • m.asianslots.co:443

  • nmk.yosusai.in:443

  • nmk.yosusai.in:8080

  • m.asianslots.co:8080

  • b52club.bio:8080

  • 32win23.pro:8080

  • e390a.com:8080

  • ww38.darkfox.me:8080

  • digitalconsulting.techvmc.co.in:8080

  • member.noboncos.co:8080

Attributes
  • audio_folder

    au88

  • audio_path

    ApplicationPath

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    App.exe

  • copy_folder

    au88

  • delete_file

    false

  • hide_file

    false

  • 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-UBA4LF

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      VAYSAO.exe
    • Size 646KB
    • SHA256 39f004b58ebdf26490e7310a483b8d50ce85302c958cd2d870dd27e1b393bd78
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    10/10
    au88discoveryremcospersistenceratsuricata

    • Family: Remcos

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

      ratremcos

    • Suricata alert: REMCOS RAT Malware Outbound C2 Communication

      Network activity triggered a Suricata alert

      suricataremcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks