General

  • Target

    SecuriteInfo.com.Win32.RATX-gen.1825.29829.exe

  • Size

    14.9MB

  • Sample

    231222-qg8dnafbfn

  • MD5

    fc99e0883a1fa153693547953a83674e

  • SHA1

    dbd645922e01c40d48e20a153984b3d79f23c823

  • SHA256

    6619b7126840529091b2da2fa1b7238d6b10bc17bbfc8327aad3683ae686b81d

  • SHA512

    084855b7d98d15b881aa7603aded7ea8a7b33f7018e58578cfb1ffedacbd24c4fc1e777ce340c953f0a02d14786e9729858d0d007050bc43d084c3eebb07c37d

  • SSDEEP

    393216:O4qkspD9+x8Gk7ro43BWwU0VEqHLHvQeCU3yU3NU3CU3OU3AU3pU3:Obks1Z9BBJHjvQeCU3yU3NU3CU3OU3AB

Malware Config

Extracted

Family

remcos

Botnet

wsus

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    wsus.exe

  • copy_folder

    wsus

  • 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

    dvwsus-SFNWWW

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      SecuriteInfo.com.Win32.RATX-gen.1825.29829.exe

    • Size

      14.9MB

    • MD5

      fc99e0883a1fa153693547953a83674e

    • SHA1

      dbd645922e01c40d48e20a153984b3d79f23c823

    • SHA256

      6619b7126840529091b2da2fa1b7238d6b10bc17bbfc8327aad3683ae686b81d

    • SHA512

      084855b7d98d15b881aa7603aded7ea8a7b33f7018e58578cfb1ffedacbd24c4fc1e777ce340c953f0a02d14786e9729858d0d007050bc43d084c3eebb07c37d

    • SSDEEP

      393216:O4qkspD9+x8Gk7ro43BWwU0VEqHLHvQeCU3yU3NU3CU3OU3AU3pU3:Obks1Z9BBJHjvQeCU3yU3NU3CU3OU3AB

    • Remcos

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks