General

  • Target
    f22c3a1bfa0a4f24fe236b3383df70cef2c162e1b55d7d0dfa94867d983935f1.bat
  • Size 41KB
  • Sample241231-dm4anstrhs
  • SHA256 f22c3a1bfa0a4f24fe236b3383df70cef2c162e1b55d7d0dfa94867d983935f1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://paste.fo/raw/a1af5a4d0301

Extracted

Family
  • xred

C2
  • xred.mooo.com

Attributes
  • email

    [email protected]

  • payload_url

    http://freedns.afraid.org/api/?action=getdyndns&sha=a30fa98efc092684e8d1c5cff797bcc613562978

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVlVsOGlEVGxuZVk&export=download

    https://www.dropbox.com/s/n1w4p8gc6jzo0sg/SUpdate.ini?dl=1

    http://xred.site50.net/syn/SUpdate.ini

    https://docs.google.com/uc?id=0BxsMXGfPIZfSVzUyaHFYVkQxeFk&export=download

    https://www.dropbox.com/s/zhp1b06imehwylq/Synaptics.rar?dl=1

    http://xred.site50.net/syn/Synaptics.rar

    https://docs.google.com/uc?id=0BxsMXGfPIZfSTmlVYkxhSDg5TzQ&export=download

    https://www.dropbox.com/s/fzj752whr3ontsm/SSLLibrary.dll?dl=1

    http://xred.site50.net/syn/SSLLibrary.dll

Targets

    • Target
      f22c3a1bfa0a4f24fe236b3383df70cef2c162e1b55d7d0dfa94867d983935f1.bat
    • Size 41KB
    • SHA256 f22c3a1bfa0a4f24fe236b3383df70cef2c162e1b55d7d0dfa94867d983935f1
    • MD5 SHA1 SHA512 SSDEEP
    • UAC bypass

    • Xred

      Xred is backdoor written in Delphi.

    • Xred family

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Hijack Execution Flow: Executable Installer File Permissions Weakness

      Possible Turn off User Account Control's privilege elevation for standard users.

    • Legitimate hosting services abused for malware hosting/C2

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks