General

  • Target
    WSAPW0650867.exe
  • Size 890KB
  • Sample251105-scelwsxncw
  • SHA256 bb5fc7e49f6281fc8df937ee858b84bb283c589d4d5ef34c4591e095204fde1f
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • remcos

Version
  • 7.0.5 Pro

Botnet
  • RemoteHost

C2
  • 196.251.70.24:2404

  • 196.251.70.24:5000

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

    true

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-T5MLMR

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Extracted

Family
  • snakekeylogger

C2
  • https://api.telegram.org/bot8434131023:AAFPL4u4Vq8RqzzmwFhGnt3I6-lK08CV3Ao/sendMessage?chat_id=6616930993

Targets

    • Target
      WSAPW0650867.exe
    • Size 890KB
    • SHA256 bb5fc7e49f6281fc8df937ee858b84bb283c589d4d5ef34c4591e095204fde1f
    • MD5 SHA1 SHA512 SSDEEP
    • Remcos

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

    • Remcos family

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger payload

    • Snakekeylogger 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.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook accounts

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target
      $PLUGINSDIR/System.dll
    • Size 12KB
    • SHA256 7a9ddee34562cd3703f1502b5c70e99cd5bba15de2b6845a3555033d7f6cb2a5
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10

MITRE ATT&CK Enterprise v16

Tasks