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Overview

overview

10

Static

static

1

cbcdc6465e...fb.exe

windows7-x64

10

cbcdc6465e...fb.exe

windows10-2004-x64

10

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General

  • Target

    cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb

  • Size

    1020KB

  • Sample

    250324-y3y14symy5

  • MD5

    dd27543bd47c9778e06923f2c80288dd

  • SHA1

    b51d2818ca602199f0dd172c44f382b8c624861c

  • SHA256

    cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb

  • SHA512

    3b4e48b24bd4324a7ba6020fc32c7fd84701314606b2cf2ed05d9983ce3a8f9755fcafe0056d354bd2ea898a1f6aca4316345d01afc3680499fbb44ed7265753

  • SSDEEP

    12288:Dp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC3F:DpugRNJI1D39dlfGQrFUxwAeAzC3F

Score
10/10
remcoshostdiscoverypersistenceratspywarestealer

Malware Config

Extracted

Family

remcos

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family

remcos

Version

1.7 Pro

Botnet

Host

C2

213.183.58.19:4000

Attributes
  • audio_folder

    audio

  • audio_path

    %AppData%

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    5

  • copy_file

    remcos.exe

  • copy_folder

    remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    true

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    true

  • keylog_file

    read.dat

  • keylog_flag

    false

  • keylog_folder

    CastC

  • keylog_path

    %AppData%

  • mouse_option

    false

  • mutex

    remcos_sccafsoidz

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screens

  • screenshot_path

    %AppData%

  • screenshot_time

    1

  • startup_value

    remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb

    • Size

      1020KB

    • MD5

      dd27543bd47c9778e06923f2c80288dd

    • SHA1

      b51d2818ca602199f0dd172c44f382b8c624861c

    • SHA256

      cbcdc6465e18b73df700a0dd56e1ce923cd0126626afb54f8970e6b582a5fdfb

    • SHA512

      3b4e48b24bd4324a7ba6020fc32c7fd84701314606b2cf2ed05d9983ce3a8f9755fcafe0056d354bd2ea898a1f6aca4316345d01afc3680499fbb44ed7265753

    • SSDEEP

      12288:Dp+rgRNyA55IxJ+feDOa9rZj5XqkJD0QrOod7XxlW91RRzwAY3AzC3F:DpugRNJI1D39dlfGQrFUxwAeAzC3F

    Score
    10/10
    remcoshostdiscoverypersistenceratspywarestealer

    • 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

    • Reads user/profile data of web browsers

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

      spywarestealer

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks