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Overview

overview

10

Static

static

1

3a3fb82ee6...1b.exe

windows7-x64

10

3a3fb82ee6...1b.exe

windows10-2004-x64

10

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General

  • Target

    3a3fb82ee69f6129863c4fdd8d237d1086c3a20e53b7ff825a9791cb73a8fa1b

  • Size

    1.7MB

  • Sample

    250323-ytynzstvas

  • MD5

    cdc138c151b5584f3a23dc7b72fa413d

  • SHA1

    7fd4a26b4ea15cd173e5f850324186221e08ada2

  • SHA256

    3a3fb82ee69f6129863c4fdd8d237d1086c3a20e53b7ff825a9791cb73a8fa1b

  • SHA512

    0baaabab13594b6729697dec47535433bfb99a97f98cd6e1f9d23148b640d07e0386b45eabc7f69c05bf5b3d729bca8e6962542b9b4e02cdd43211fe31ea1f75

  • SSDEEP

    24576:YD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjomy1:Yp7E+QrFUBgq2vy1

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

Targets

    • Target

      3a3fb82ee69f6129863c4fdd8d237d1086c3a20e53b7ff825a9791cb73a8fa1b

    • Size

      1.7MB

    • MD5

      cdc138c151b5584f3a23dc7b72fa413d

    • SHA1

      7fd4a26b4ea15cd173e5f850324186221e08ada2

    • SHA256

      3a3fb82ee69f6129863c4fdd8d237d1086c3a20e53b7ff825a9791cb73a8fa1b

    • SHA512

      0baaabab13594b6729697dec47535433bfb99a97f98cd6e1f9d23148b640d07e0386b45eabc7f69c05bf5b3d729bca8e6962542b9b4e02cdd43211fe31ea1f75

    • SSDEEP

      24576:YD39v74lfGQrFUspugRNJI2DJ53J/J/L5dJPjomy1:Yp7E+QrFUBgq2vy1

    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