General

  • Target

    FV0900081251054515515,pdf (2).uu

  • Size

    7KB

  • Sample

    241031-x8tg5strdk

  • MD5

    ca6a46ce72ee0b44459c58dda61f0aed

  • SHA1

    bdda77bd15a82cae95225f6debb536d47d211932

  • SHA256

    0bdccaed550af60f1b8a7ebb690465abe77be4e6c43a99df110d3251ee2fde2b

  • SHA512

    70713bf1d9718dcaad8890a85c8e8956f57f8e0c73e2f9dc30504a93939207e9a443f5c1b477bef82a44418e5028de17ed69263a5c741f79cae34e1148fdeed9

  • SSDEEP

    192:rSMf/SPvwIghl4lqFWVL9mZ2w0DwrK7ZW0uk:3/QvwIUFW9i0DtrL

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://pastebin.com/raw/J6uRjZrv

Extracted

Family

remcos

Botnet

RemoteHost

C2

remcos2010.duckdns.org:2010

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

    registros.dat

  • keylog_flag

    false

  • keylog_folder

    rmc

  • mouse_option

    false

  • mutex

    Rmc-E3OCRB

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Capturas de pantalla

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      FV0900081251054515515,pdf.vbs

    • Size

      14.3MB

    • MD5

      66f97abe5abe9a246eedc33ec848ebe6

    • SHA1

      51b7c954bb5cbd218e0de2df14c0d463de62e3e0

    • SHA256

      d2d0eb0d42c0c5a8532a6268a05894621b52b354fa0c6a2ee11e575501ac95d5

    • SHA512

      f918c78682fb8ace57e2bf62d03546a4ec03a03ee93eb925bbee02bb07f710fec4fc9d128d1efefb3e43f63fb6ce652712a872aff103908cc4e6823cff8356df

    • SSDEEP

      1536:lyyyyyyyyyyyyyyyyyyyyyyyryyyyyyyyyyyyyyyyyyyyyyycyyyyyyyyyyyyyyu:mZ5G

    • Remcos

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

    • Remcos family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks