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General

  • Target

    c5a367d23e35485e380c0468d1b12a02373e6330235b570d4a1fe76bcdc948fd

  • Size

    1018KB

  • Sample

    250324-y41lbsvyg1

  • MD5

    82eada34cc687b8518c5dbb56eff51a7

  • SHA1

    59609925ace4619730267711badbf32da98bd6c7

  • SHA256

    c5a367d23e35485e380c0468d1b12a02373e6330235b570d4a1fe76bcdc948fd

  • SHA512

    e3ca53580d24d810b539ab58572bb9cd964e4cff918839d4027b31a9aef645fdc5bde7e33baed905386fdfdcf14f97dfea99f670794a58af4b528bd26f7eb13b

  • SSDEEP

    12288:Cp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC2:CpugRNJI1D39dlfGQrFUxwAeAzC2

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      c5a367d23e35485e380c0468d1b12a02373e6330235b570d4a1fe76bcdc948fd

    • Size

      1018KB

    • MD5

      82eada34cc687b8518c5dbb56eff51a7

    • SHA1

      59609925ace4619730267711badbf32da98bd6c7

    • SHA256

      c5a367d23e35485e380c0468d1b12a02373e6330235b570d4a1fe76bcdc948fd

    • SHA512

      e3ca53580d24d810b539ab58572bb9cd964e4cff918839d4027b31a9aef645fdc5bde7e33baed905386fdfdcf14f97dfea99f670794a58af4b528bd26f7eb13b

    • SSDEEP

      12288:Cp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC2:CpugRNJI1D39dlfGQrFUxwAeAzC2

    • Remcos

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

    • Remcos family

    • 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