General

  • Target

    a8866d1129bde5e76d54062999935308.bin

  • Size

    433KB

  • Sample

    231214-bv6dwsafcl

  • MD5

    a8866d1129bde5e76d54062999935308

  • SHA1

    f96e8c5ca7c3369aea4e9286cc60c96455c0ef81

  • SHA256

    5ed2be2c358988a27a0973273b80c89f3e0cb808b654a2a09b91bcf5a38c46c7

  • SHA512

    bae3ab100553f6a57fa82e0b033a43e576992001fff62f6eea33d7441231bd07541cbb8f981214663a564fa73cd63c39555c4de28df0ce3c7f9e951c3ff4a3ef

  • SSDEEP

    6144:P8LxBsMBAsL9XYtikPb8G1XE2cr9oLN/JM+QlFM2y5FI6uRh41vhgyXKZK4gmn:BIzL9cjp0gNfNI63vhgyTmn

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

107.175.229.139:8087

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-IZFV1M

  • 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

      a8866d1129bde5e76d54062999935308.bin

    • Size

      433KB

    • MD5

      a8866d1129bde5e76d54062999935308

    • SHA1

      f96e8c5ca7c3369aea4e9286cc60c96455c0ef81

    • SHA256

      5ed2be2c358988a27a0973273b80c89f3e0cb808b654a2a09b91bcf5a38c46c7

    • SHA512

      bae3ab100553f6a57fa82e0b033a43e576992001fff62f6eea33d7441231bd07541cbb8f981214663a564fa73cd63c39555c4de28df0ce3c7f9e951c3ff4a3ef

    • SSDEEP

      6144:P8LxBsMBAsL9XYtikPb8G1XE2cr9oLN/JM+QlFM2y5FI6uRh41vhgyXKZK4gmn:BIzL9cjp0gNfNI63vhgyTmn

    • Remcos

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

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks