General

  • Target

    Ref#60031796.exe

  • Size

    977KB

  • Sample

    241209-gfqyjszndy

  • MD5

    6525d1510016959c65676fca54680b6e

  • SHA1

    d4a544d1fc0690a2309fe0223bd31529e44a7355

  • SHA256

    0b2b9a03881b2a49d79df2c6a19d12cf076a031080698b8c4bce87bb8252b277

  • SHA512

    b57c0aaba41a992c08af93a8c1e0cd05f9553cb86945fcafce80553b5fdd754de50d25a9bee516d5eeb5bf3b2583eb1013787f8d10a4a1c0bcd891638116ea81

  • SSDEEP

    24576:1dhlcW4SeNmOKIc8dJ8UiAtXLN1ovIqPc5/aGvseec:BCW4SGKIc0J8Uig3owC8/R

Malware Config

Extracted

Family

remcos

Botnet

hdyebf

C2

decmainserver.webredirect.org:45682

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

    remcos

  • mouse_option

    false

  • mutex

    46875-RPQWNM

  • 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

      Ref#60031796.exe

    • Size

      977KB

    • MD5

      6525d1510016959c65676fca54680b6e

    • SHA1

      d4a544d1fc0690a2309fe0223bd31529e44a7355

    • SHA256

      0b2b9a03881b2a49d79df2c6a19d12cf076a031080698b8c4bce87bb8252b277

    • SHA512

      b57c0aaba41a992c08af93a8c1e0cd05f9553cb86945fcafce80553b5fdd754de50d25a9bee516d5eeb5bf3b2583eb1013787f8d10a4a1c0bcd891638116ea81

    • SSDEEP

      24576:1dhlcW4SeNmOKIc8dJ8UiAtXLN1ovIqPc5/aGvseec:BCW4SGKIc0J8Uig3owC8/R

    • Remcos

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

    • Remcos family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks