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Overview

overview

10

Static

static

1

45953e1cc7...97.exe

windows7-x64

10

45953e1cc7...97.exe

windows10-2004-x64

10

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General

  • Target

    45953e1cc73e4d0532131db560a8ff98bfaa191c11ec4466ccb97922c6241897

  • Size

    1.9MB

  • Sample

    250322-yypxmszsfz

  • MD5

    8c294bb770e18048531d6c32fcbe7028

  • SHA1

    462aacd9e08641104d5d3e176f582021e2f9b035

  • SHA256

    45953e1cc73e4d0532131db560a8ff98bfaa191c11ec4466ccb97922c6241897

  • SHA512

    6f67a49e27c9e42b1629b75efa4662801eee1a5afb31aa7e2793987dee772ef316f16842bcfda2e5880ed957b7ae8ecc6df5057946caeeb7063ecf5e03b791dc

  • SSDEEP

    24576:jD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6jO:jF+QrFUBgq25eKu6jO

Score
10/10
remcoshostdiscoverypersistenceratspywarestealer

Malware Config

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

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

Targets

    • Target

      45953e1cc73e4d0532131db560a8ff98bfaa191c11ec4466ccb97922c6241897

    • Size

      1.9MB

    • MD5

      8c294bb770e18048531d6c32fcbe7028

    • SHA1

      462aacd9e08641104d5d3e176f582021e2f9b035

    • SHA256

      45953e1cc73e4d0532131db560a8ff98bfaa191c11ec4466ccb97922c6241897

    • SHA512

      6f67a49e27c9e42b1629b75efa4662801eee1a5afb31aa7e2793987dee772ef316f16842bcfda2e5880ed957b7ae8ecc6df5057946caeeb7063ecf5e03b791dc

    • SSDEEP

      24576:jD39dlfGQrFUspugRNJI2DJnUw9W/j+BeKJWqwH6jO:jF+QrFUBgq25eKu6jO

    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