General

  • Target

    Modrinth_Installer.exe

  • Size

    5.6MB

  • Sample

    240727-1w5anatgnd

  • MD5

    5c9cf1fe418466925327bc4afa746939

  • SHA1

    abe580c9b713685cd56866a8a19c31ea80914aea

  • SHA256

    54fb1f732205a069f0a0895ebb3b3bffcc34b7c8675e624ca3a8320e620cc916

  • SHA512

    a4518351ad34c045d2fec6ff231a1f68d06cbfdf4b128fe3f88508f8b4f96225bd01d5f457358c05f6adccdd7aab41d8119ee4a7d3ad0e9c13b429bbb01a8cb4

  • SSDEEP

    98304:ZvbNT+6HE4ThcGalSS9d+udj3mYcCqQcgT3XV8tEbETvsDHaLqV710ZZ9rPzrPW8://HMlS2JxmYcmcg7XGqb6Msq51GPf

Malware Config

Extracted

Family

xworm

C2

she-vocal.gl.at.ply.gg:36704

Attributes
  • Install_directory

    %AppData%

  • install_file

    notepad.exe

Extracted

Family

xworm

Version

3.0

C2

plus-loves.gl.at.ply.gg:59327

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      Modrinth_Installer.exe

    • Size

      5.6MB

    • MD5

      5c9cf1fe418466925327bc4afa746939

    • SHA1

      abe580c9b713685cd56866a8a19c31ea80914aea

    • SHA256

      54fb1f732205a069f0a0895ebb3b3bffcc34b7c8675e624ca3a8320e620cc916

    • SHA512

      a4518351ad34c045d2fec6ff231a1f68d06cbfdf4b128fe3f88508f8b4f96225bd01d5f457358c05f6adccdd7aab41d8119ee4a7d3ad0e9c13b429bbb01a8cb4

    • SSDEEP

      98304:ZvbNT+6HE4ThcGalSS9d+udj3mYcCqQcgT3XV8tEbETvsDHaLqV710ZZ9rPzrPW8://HMlS2JxmYcmcg7XGqb6Msq51GPf

    • DcRat

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

    • Detect Xworm Payload

    • Modifies WinLogon for persistence

    • Process spawned unexpected child process

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

    • Xworm

      Xworm is a remote access trojan written in C#.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • 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 startup file

    • Executes dropped EXE

    • Adds Run key to start application

    • Blocklisted process makes network request

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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

MITRE ATT&CK Enterprise v15

Tasks