General

  • Target

    173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

  • Size

    482KB

  • Sample

    250128-m83eyawras

  • MD5

    6acc74966a02fca1bb61eb3cb1cafe56

  • SHA1

    f59eb048045d669b1ca78299eaac93ca7f8f46e1

  • SHA256

    349b0a51336973033d8bf552d20bab1a69fe0f89c3c6337ea63146ff67e22232

  • SHA512

    29c3e50b1352816aff1be560de27ebe90c234bf62f61866b219616af218eb2233a68ab412c252ac493a160a40c2e2ec3031d2b4797e99bb995dd5ed8ac9ce60b

  • SSDEEP

    12288:x13ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQrRS:jak/mBXTV/R0nEF76gFZW

Malware Config

Extracted

Family

remcos

Botnet

zynova

C2

newbigupdateforme.duckdns.org:14646

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-ID1P7W

  • 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

      173806218309a02298b9c70f3356de18683e5d43f6f5d724f2a3640438114ed5bc97201c16751.dat-decoded.exe

    • Size

      482KB

    • MD5

      6acc74966a02fca1bb61eb3cb1cafe56

    • SHA1

      f59eb048045d669b1ca78299eaac93ca7f8f46e1

    • SHA256

      349b0a51336973033d8bf552d20bab1a69fe0f89c3c6337ea63146ff67e22232

    • SHA512

      29c3e50b1352816aff1be560de27ebe90c234bf62f61866b219616af218eb2233a68ab412c252ac493a160a40c2e2ec3031d2b4797e99bb995dd5ed8ac9ce60b

    • SSDEEP

      12288:x13ak/mBXTG4/1v08KI7ZnMEF76JqmsvZQrRS:jak/mBXTV/R0nEF76gFZW

    • 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

    • 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