General

  • Target

    Inv, PL & BL.pdf..vbs

  • Size

    390KB

  • Sample

    221125-h5ky9sae82

  • MD5

    fa5897dc568a623041698c320f8e9814

  • SHA1

    cf31de8d1b36e13d94f62b4276ef2dc0c98f5675

  • SHA256

    e203029a1731c07a78fb33af68e11c4486991a5e53693bd415bd43626a5d1b1e

  • SHA512

    325267865ef89db8423ecb2d53eb96156d9e55276221ddc90230a3273f4f699c8d435901999e91fee03344e685b236c076d903ea248dd39d75f6203b8bb57cd9

  • SSDEEP

    6144:q1y/akuEDPf88yPxlupEzfO2YMLg9WwbfE+pNRRUdor3uY:szEDXyPxAmzfOeLmppNvgy3x

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

139.28.36.170:50197

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-WZDHL1

  • 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

      Inv, PL & BL.pdf..vbs

    • Size

      390KB

    • MD5

      fa5897dc568a623041698c320f8e9814

    • SHA1

      cf31de8d1b36e13d94f62b4276ef2dc0c98f5675

    • SHA256

      e203029a1731c07a78fb33af68e11c4486991a5e53693bd415bd43626a5d1b1e

    • SHA512

      325267865ef89db8423ecb2d53eb96156d9e55276221ddc90230a3273f4f699c8d435901999e91fee03344e685b236c076d903ea248dd39d75f6203b8bb57cd9

    • SSDEEP

      6144:q1y/akuEDPf88yPxlupEzfO2YMLg9WwbfE+pNRRUdor3uY:szEDXyPxAmzfOeLmppNvgy3x

    • Remcos

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

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks