General

  • Target

    b7cd81494be4fd997d0d47cde6689f357b52f4ac8c50ab730569edef51a25a8c.exe

  • Size

    3.7MB

  • Sample

    241112-deq1daslft

  • MD5

    b7419c5f4cb484befbb098627475a806

  • SHA1

    c59a69a2a19fab12903b38a73fea20edc7013abb

  • SHA256

    b7cd81494be4fd997d0d47cde6689f357b52f4ac8c50ab730569edef51a25a8c

  • SHA512

    471cb8e64ad1048c0f7d211212cd014d4b561f041aa4d9f8c324aa5736d5e37a65292218c3f8eba78298f9d9fa48fd2f3b932912eecfd305f744ac583ca1eed6

  • SSDEEP

    24576:G6NBJgWDzcRxQi9yiLiS02733o8MpIVPc:hBJgWAQi9y+502Cm0

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

198.46.178.148:2024

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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

    Rmc-Z20G9Z

  • screenshot_crypt

    false

  • screenshot_flag

    true

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      b7cd81494be4fd997d0d47cde6689f357b52f4ac8c50ab730569edef51a25a8c.exe

    • Size

      3.7MB

    • MD5

      b7419c5f4cb484befbb098627475a806

    • SHA1

      c59a69a2a19fab12903b38a73fea20edc7013abb

    • SHA256

      b7cd81494be4fd997d0d47cde6689f357b52f4ac8c50ab730569edef51a25a8c

    • SHA512

      471cb8e64ad1048c0f7d211212cd014d4b561f041aa4d9f8c324aa5736d5e37a65292218c3f8eba78298f9d9fa48fd2f3b932912eecfd305f744ac583ca1eed6

    • SSDEEP

      24576:G6NBJgWDzcRxQi9yiLiS02733o8MpIVPc:hBJgWAQi9y+502Cm0

    • Remcos

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

    • Remcos family

    • UAC bypass

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Command and Scripting Interpreter: PowerShell

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

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Windows security modification

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks