General

  • Target
    Nonagon.exe
  • Size 23KB
  • Sample241206-v1237symg1
  • SHA256 f679075808adffca9a26ade94cc8494ccc500333e8613708e9ba077d88d92a70
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • phemedrone

C2
  • https://api.telegram.org/bot7940307483:AAEmmDBRKx8kRMTrlD986B7qCulYd2jfQHw/sendDocument

Extracted

Family
  • gurcu

C2
  • https://api.telegram.org/bot7940307483:AAEmmDBRKx8kRMTrlD986B7qCulYd2jfQHw/sendDocumen

Targets

    • Target
      Nonagon.exe
    • Size 23KB
    • SHA256 f679075808adffca9a26ade94cc8494ccc500333e8613708e9ba077d88d92a70
    • MD5 SHA1 SHA512 SSDEEP
    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Detect Umbral payload

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • Phemedrone

      An information and wallet stealer written in C#.

    • Phemedrone family

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Umbral family

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • Modifies WinLogon

MITRE ATT&CK Enterprise v15

Tasks