General

  • Target

    1726170845fe5c472375696bf668b3b528e9effd5f9dfb1a2108bcc6e243a091f1afc5c794629.dat-decoded.exe

  • Size

    483KB

  • Sample

    240912-ym4lnasalh

  • MD5

    fbfed304aa0320505a322b92eb198d68

  • SHA1

    033eb7a422a4d4d5e61d537a4b8225b335ec153c

  • SHA256

    e9e4c938b340a17f41010be30d4db8ef9c0bceb7743b74b3a348b0f631647cda

  • SHA512

    d4ebaa88fdac70c8dfe486ffd6796848f7f2e9ca89baf5131dde3e9e58b85f7d9eb96da33c00f7500903bc065e0bfc87eb34823f7428c6989424c82c14520a41

  • SSDEEP

    12288:wTlrYw1RUh3NFn+N5WfIQIjbs/ZBOoT4:ApRUh3NDfIQIjeZ

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

C2

45.90.89.98:8243

Attributes
  • audio_folder

    MicRecords

  • 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

    true

  • install_flag

    false

  • keylog_crypt

    true

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    loat

  • keylog_path

    %Temp%

  • mouse_option

    false

  • mutex

    Rmc-O0U3JA

  • 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

      1726170845fe5c472375696bf668b3b528e9effd5f9dfb1a2108bcc6e243a091f1afc5c794629.dat-decoded.exe

    • Size

      483KB

    • MD5

      fbfed304aa0320505a322b92eb198d68

    • SHA1

      033eb7a422a4d4d5e61d537a4b8225b335ec153c

    • SHA256

      e9e4c938b340a17f41010be30d4db8ef9c0bceb7743b74b3a348b0f631647cda

    • SHA512

      d4ebaa88fdac70c8dfe486ffd6796848f7f2e9ca89baf5131dde3e9e58b85f7d9eb96da33c00f7500903bc065e0bfc87eb34823f7428c6989424c82c14520a41

    • SSDEEP

      12288:wTlrYw1RUh3NFn+N5WfIQIjbs/ZBOoT4:ApRUh3NDfIQIjeZ

    • Remcos

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

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks