General

  • Target
    Pedido 202510130ESPA.pdf.exe
  • Size 698KB
  • Sample251013-m2wntaxxcw
  • SHA256 829fad413d5103822bc05f8cbf726203d8a57be3da077e0deaa3a901b6be1efa
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

C2
  • rency.ydns.eu:59013

  • wqo9.firewall-gateway.de:59013

  • twart.myfirewall.org:59013

Mutex
  • G0ZySqZ6IilUETwE

Attributes
  • Install_directory

    %AppData%

  • install_file

    Roaming\WD\WDUpdate2025.exe

aes.plain

Extracted

Family
  • darkcloud

C2
  • https://api.telegram.org/bot6274587098:AAEvD64fpPpZLNdkxKF7wS-y2GX94H3OkSM/sendMessage?chat_id=6265187542

Extracted

Family
  • remcos

Version
  • 3.8.0 Pro

Botnet
  • ES XWORM

C2
  • rency.ydns.eu:2404

  • wqo9.firewall-gateway.de:4045

  • code1.ydns.eu:9302

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    System.exe

  • copy_folder

    MicroSoft Outlook

  • delete_file

    false

  • hide_file

    true

  • hide_keylog_file

    false

  • install_flag

    false

  • install_path

    %AppData%

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    TCWd3hQ5LP1Fcm2U5B0fn3xuWp5u5rQsC2Y-DJRO57

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    MicroSoft

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target
      Pedido 202510130ESPA.pdf.exe
    • Size 698KB
    • SHA256 829fad413d5103822bc05f8cbf726203d8a57be3da077e0deaa3a901b6be1efa
    • MD5 SHA1 SHA512 SSDEEP
    • DarkCloud

      An information stealer written in Visual Basic.

    • Darkcloud family

    • Darktortilla

      DarkTortilla is a highly configurable .NET based crypter that delivers a wide range of information stealers.

    • Darktortilla family

    • Detect Xworm Payload

    • Detects Darktortilla crypter.

    • Remcos

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

    • Remcos family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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 profiles

    • Adds Run key to start application

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks