General

  • Target

    27cef70a62f86294bd81b32ac6f96890.exe

  • Size

    760KB

  • Sample

    230131-t9ylpsba4t

  • MD5

    27cef70a62f86294bd81b32ac6f96890

  • SHA1

    b45279594d4d7f9b161458593ac5d007d8758afa

  • SHA256

    bc5e5b32cee20470d93b3152c3cb5faeee1434a11e07b5ac5efaa76fe1221034

  • SHA512

    f72a064fffc02f3ce14df3e66f383234da687f12911213d604a67616563df797f9d1928f4398403362854c36d95067fe9dc8130e6542c95407ec187286d39667

  • SSDEEP

    12288:nXCSJ638aXV+o1zl3qJVkdRTYJO8t8q0NVlstZo1NkB0lEKjh4jieNt:yUk+o10JVE+Jl8FNHkmNkBPKhheN

Malware Config

Extracted

Family

remcos

Botnet

SKY-YAK

C2

www.christopherferr.com:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    12345

  • mouse_option

    false

  • mutex

    Rmc-E68T3F

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      27cef70a62f86294bd81b32ac6f96890.exe

    • Size

      760KB

    • MD5

      27cef70a62f86294bd81b32ac6f96890

    • SHA1

      b45279594d4d7f9b161458593ac5d007d8758afa

    • SHA256

      bc5e5b32cee20470d93b3152c3cb5faeee1434a11e07b5ac5efaa76fe1221034

    • SHA512

      f72a064fffc02f3ce14df3e66f383234da687f12911213d604a67616563df797f9d1928f4398403362854c36d95067fe9dc8130e6542c95407ec187286d39667

    • SSDEEP

      12288:nXCSJ638aXV+o1zl3qJVkdRTYJO8t8q0NVlstZo1NkB0lEKjh4jieNt:yUk+o10JVE+Jl8FNHkmNkBPKhheN

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Remcos

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

    • ModiLoader Second Stage

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

MITRE ATT&CK Enterprise v6

Tasks