General

  • Target
    Proforma Invoice P002821.exe
  • Size 1.3MB
  • Sample240214-1rbsjscc34
  • SHA256 a2ef2840d2cb8314c387373d91cd579a556a338b852ed4c2ee0502c7f387c26a
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Botnet
  • RemoteHost

C2
  • officerem.duckdns.org:47212

  • 127.0.0.1:47212

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-0QM6RG

  • 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
      Proforma Invoice P002821.exe
    • Size 1.3MB
    • SHA256 a2ef2840d2cb8314c387373d91cd579a556a338b852ed4c2ee0502c7f387c26a
    • MD5 SHA1 SHA512 SSDEEP
    • 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

    • Creates new service(s)

    • 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