Overview

overview

10

Static

static

3

requests-pdf.exe

windows7-x64

10

requests-pdf.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    requests-pdf.exe
  • Size 474KB
  • Sample241214-ptf99sskcx
  • SHA256 0e184edac45ddeaf7ca4681b65e7b4accafb6705032faf6d2f6a61d2ef6d1ded
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
remcosyavakosadiscoverypersistencerat

Malware Config

Extracted

Family

  • remcos

Botnet

  • Yavakosa

C2

  • 198.23.227.212:32583

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    yavascript.exe

  • copy_folder

    xenor

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    true

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-I7G983

  • 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
      requests-pdf.exe
    • Size 474KB
    • SHA256 0e184edac45ddeaf7ca4681b65e7b4accafb6705032faf6d2f6a61d2ef6d1ded
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    remcosyavakosadiscoverypersistencerat

    • Remcos

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

      ratremcos

    • Remcos family

      remcos

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks