General

  • Target

    XClient.exe

  • Size

    78KB

  • Sample

    240731-bxfw1szbqq

  • MD5

    0d5a06fb36fc3ec5d1cf09d0d98a325f

  • SHA1

    b6ecffeaf89e8537ef50d140e237c2438be6d9ec

  • SHA256

    cefc2905829d0f361e498347cbacea9dc5d51eebe0d0d9f531aa167101334552

  • SHA512

    1676b5aef4e76cbe2cab0f321df3a92a5629e310d292c4a51b52588bd9f9203cc0ef4cfe40741273f20967c542de4fbd8c234dd7bc5beb56699712b05bdd7b58

  • SSDEEP

    1536:w6Yk0SRr3dvpcymipq3DgXxOyz+b6jH8/zlnNpuh6f0nOR/K/SERL8K0V0:w6Yk0SRU1nTgX0yz+b6jH81z8OR/KHec

Malware Config

Extracted

Family

xworm

Attributes
  • install_file

    wintousb.exe

Targets

    • Target

      XClient.exe

    • Size

      78KB

    • MD5

      0d5a06fb36fc3ec5d1cf09d0d98a325f

    • SHA1

      b6ecffeaf89e8537ef50d140e237c2438be6d9ec

    • SHA256

      cefc2905829d0f361e498347cbacea9dc5d51eebe0d0d9f531aa167101334552

    • SHA512

      1676b5aef4e76cbe2cab0f321df3a92a5629e310d292c4a51b52588bd9f9203cc0ef4cfe40741273f20967c542de4fbd8c234dd7bc5beb56699712b05bdd7b58

    • SSDEEP

      1536:w6Yk0SRr3dvpcymipq3DgXxOyz+b6jH8/zlnNpuh6f0nOR/K/SERL8K0V0:w6Yk0SRU1nTgX0yz+b6jH81z8OR/KHec

    • Detect Xworm Payload

    • StormKitty

      StormKitty is an open source info stealer written in C#.

    • StormKitty payload

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Command and Scripting Interpreter: PowerShell

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

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

    • UPX packed file

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

    • Accesses Microsoft Outlook accounts

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks