General

  • Target

    c019234ae64f8b90757994d1a09137c67f6ecf9f86abe8de04f7897a4741aa5f

  • Size

    979KB

  • Sample

    250218-jstajsynel

  • MD5

    eadeb882059f94778cfb6dbd25c8f5c4

  • SHA1

    c250bcca1d4f883d2be79064ada012242d7d2d05

  • SHA256

    c019234ae64f8b90757994d1a09137c67f6ecf9f86abe8de04f7897a4741aa5f

  • SHA512

    bc2fdece4b0fb3eedfd6ce8b5708eef2c19635f373fce759c84f46ec693aab812a69f5e761e47339455103439687a8b467d1fea8ae4db7a3ed6e67a828db067b

  • SSDEEP

    24576:Osnyfn18AXUgMZ5Vsws2/3tD6Wl2NwJ1SM9lm1:OMyfn1HXUgMRsCQNwJ8

Malware Config

Extracted

Family

remcos

Botnet

TONYY

C2

196.251.81.45:40124

127.0.0.1:40124

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-VAMTD5

  • 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

      c019234ae64f8b90757994d1a09137c67f6ecf9f86abe8de04f7897a4741aa5f

    • Size

      979KB

    • MD5

      eadeb882059f94778cfb6dbd25c8f5c4

    • SHA1

      c250bcca1d4f883d2be79064ada012242d7d2d05

    • SHA256

      c019234ae64f8b90757994d1a09137c67f6ecf9f86abe8de04f7897a4741aa5f

    • SHA512

      bc2fdece4b0fb3eedfd6ce8b5708eef2c19635f373fce759c84f46ec693aab812a69f5e761e47339455103439687a8b467d1fea8ae4db7a3ed6e67a828db067b

    • SSDEEP

      24576:Osnyfn18AXUgMZ5Vsws2/3tD6Wl2NwJ1SM9lm1:OMyfn1HXUgMRsCQNwJ8

    • 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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks computer location settings

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

    • 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