General

  • Target

    ff389718792f877fbdabe5cb02a1b3d5de5be988f9b5690250ffdf3409f04000.msi

  • Size

    1.7MB

  • Sample

    241122-dxb9yazkgl

  • MD5

    7c26877fcd894cc1355f2a31a551243c

  • SHA1

    80104216da4cd3449eabf0e0de2bb3a5b2de85ca

  • SHA256

    ff389718792f877fbdabe5cb02a1b3d5de5be988f9b5690250ffdf3409f04000

  • SHA512

    a57a961a3339b105f9d5653b69269ed7aab952a4e16600426edee80d628a9ac62a13b5ea642ffd9765fdada7b0db5c5a85a21bc88c125be122bf3c4e89d0cfb8

  • SSDEEP

    49152:BpRhaYJ+2/8yJ5OA4COg9lyp31X01clj+u1GTsF:BpDJ+2pgA4+6p31is+u1G4

Malware Config

Extracted

Family

remcos

Version

4.9.4 Pro

Botnet

zip

C2

rm.anonbaba.net:3393

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

    Rmc-RNN6CM

  • 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

      ff389718792f877fbdabe5cb02a1b3d5de5be988f9b5690250ffdf3409f04000.msi

    • Size

      1.7MB

    • MD5

      7c26877fcd894cc1355f2a31a551243c

    • SHA1

      80104216da4cd3449eabf0e0de2bb3a5b2de85ca

    • SHA256

      ff389718792f877fbdabe5cb02a1b3d5de5be988f9b5690250ffdf3409f04000

    • SHA512

      a57a961a3339b105f9d5653b69269ed7aab952a4e16600426edee80d628a9ac62a13b5ea642ffd9765fdada7b0db5c5a85a21bc88c125be122bf3c4e89d0cfb8

    • SSDEEP

      49152:BpRhaYJ+2/8yJ5OA4COg9lyp31X01clj+u1GTsF:BpDJ+2pgA4+6p31is+u1G4

    • Remcos

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

    • Remcos family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Modifies file permissions

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks