General

  • Target

    seethebstpricewithbestthinghappingwithgoodnews.hta

  • Size

    207KB

  • Sample

    241111-llgdhsxgke

  • MD5

    5c6522d3ef6ab2a8004bb76a3aaaa2c1

  • SHA1

    53b8899b097090cc207ba2be8b3e965e43cf1e58

  • SHA256

    712a8d8a82351dc2d2173b6d66245b1e2ee34db4045fa27b3e76dc462f8a5811

  • SHA512

    71900b6feccfaf8e5b2d4202281507dfca0059e6e832abec4d4f6100446fa18b8d23328fb77f28d3634a49768cac97505a6ff5e355d61cf32fa137ebe270ac53

  • SSDEEP

    48:4FhWsTR/F7gNqXfA0b4wSQcpzb4wSQkps8EU/oxLUFpyH80ESZSvKyQv0Aey8SbE:43F97S6UY68gSv280XGKyQ26Q6MyG6dQ

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

exe.dropper

https://1017.filemail.com/api/file/get?filekey=2Aa_bWo9Reu45t7BU1kVgsd9pT9pgSSlvStGrnTICfFhmTKj3LC6SQtIcOc_T35w&pk_vid=fd4f614bb209c62c1730945176a0904f

Extracted

Family

remcos

Botnet

zynova

C2

whatgodcanntdothat.duckdns.org:14645

Attributes
  • audio_folder

    MicRecords

  • audio_path

    ApplicationPath

  • 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-5MVXT0

  • 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

      seethebstpricewithbestthinghappingwithgoodnews.hta

    • Size

      207KB

    • MD5

      5c6522d3ef6ab2a8004bb76a3aaaa2c1

    • SHA1

      53b8899b097090cc207ba2be8b3e965e43cf1e58

    • SHA256

      712a8d8a82351dc2d2173b6d66245b1e2ee34db4045fa27b3e76dc462f8a5811

    • SHA512

      71900b6feccfaf8e5b2d4202281507dfca0059e6e832abec4d4f6100446fa18b8d23328fb77f28d3634a49768cac97505a6ff5e355d61cf32fa137ebe270ac53

    • SSDEEP

      48:4FhWsTR/F7gNqXfA0b4wSQcpzb4wSQkps8EU/oxLUFpyH80ESZSvKyQv0Aey8SbE:43F97S6UY68gSv280XGKyQ26Q6MyG6dQ

    • Remcos

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

    • Remcos family

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Evasion via Device Credential Deployment

    • Checks computer location settings

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

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks