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General

  • Target

    midyear_statement.exe

  • Size

    1.2MB

  • Sample

    240328-p7g4qafg82

  • MD5

    dd8e3f6ac5c24960b3a69490082c60e1

  • SHA1

    c5f8aaec5baa571791789dd5fac53e27938dbc29

  • SHA256

    15db18392d7bbf15b30e528db05ec306e00ac3227277d0639064ec3e2bc98c73

  • SHA512

    ac96e6fb368f5e2c8b8a80eb32635357f1931838b8575125956fe2e3c2465b7bd228606635f3563bb0a047b3bc8fbd19d25e0609210c4574c05993ec078ad205

  • SSDEEP

    12288:evGkW/sci4Vup7XNihvMHH59TpfLFhLme7iEEEblTHQE1ZEQrfvAcEH+DwxTe8g:e+Rg+up7XNiyHZ994eHQEQahz

Malware Config

Extracted

Family

remcos

Botnet

vista

C2

www.zuckdgreb.duckdns.org:4445

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

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-W5UGP5

  • 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

      midyear_statement.exe

    • Size

      1.2MB

    • MD5

      dd8e3f6ac5c24960b3a69490082c60e1

    • SHA1

      c5f8aaec5baa571791789dd5fac53e27938dbc29

    • SHA256

      15db18392d7bbf15b30e528db05ec306e00ac3227277d0639064ec3e2bc98c73

    • SHA512

      ac96e6fb368f5e2c8b8a80eb32635357f1931838b8575125956fe2e3c2465b7bd228606635f3563bb0a047b3bc8fbd19d25e0609210c4574c05993ec078ad205

    • SSDEEP

      12288:evGkW/sci4Vup7XNihvMHH59TpfLFhLme7iEEEblTHQE1ZEQrfvAcEH+DwxTe8g:e+Rg+up7XNiyHZ994eHQEQahz

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Remcos

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

    • ModiLoader Second Stage

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Nirsoft

    • 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.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks