General

  • Target

    XClient.exe

  • Size

    188KB

  • Sample

    240413-mrrl4sch46

  • MD5

    06950fafb2ebce7778eb434a21e7c80c

  • SHA1

    d0fec48dc1fdf9070e28eee9468fa8884407ed0c

  • SHA256

    b89f6b26295ea93ead52dbec7441967366ba1edb495570f28aa63b29817498c4

  • SHA512

    b6d231f24edd806bc8ab74f41ea9b1e1c0bc15fba11ee225ab02adfc59e4cf7fa31a5520218c7ab4c4082594cf30d778e8b18889c7fbb6593ccd2bdba84c6b03

  • SSDEEP

    3072:7S19nA+bYl7OU264NpVq8BxFRzaqF+o2GQJ7/JzqVfGvp:7AhbcA6gVqwlL

Malware Config

Extracted

Family

xworm

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    Chrome.exe

  • pastebin_url

    https://pastebin.com/raw/SskbLNL2

  • telegram

    https://api.telegram.org/bot6908115126:AAFK7X8EwJCyolcIuYpa614_tJ0H4OcVQu8/sendMessage?chat_id=939716992

Targets

    • Target

      XClient.exe

    • Size

      188KB

    • MD5

      06950fafb2ebce7778eb434a21e7c80c

    • SHA1

      d0fec48dc1fdf9070e28eee9468fa8884407ed0c

    • SHA256

      b89f6b26295ea93ead52dbec7441967366ba1edb495570f28aa63b29817498c4

    • SHA512

      b6d231f24edd806bc8ab74f41ea9b1e1c0bc15fba11ee225ab02adfc59e4cf7fa31a5520218c7ab4c4082594cf30d778e8b18889c7fbb6593ccd2bdba84c6b03

    • SSDEEP

      3072:7S19nA+bYl7OU264NpVq8BxFRzaqF+o2GQJ7/JzqVfGvp:7AhbcA6gVqwlL

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Detect Xworm Payload

    • XenArmor Suite

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

    • Xworm

      Xworm is a remote access trojan written in C#.

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • 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 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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Legitimate hosting services abused for malware hosting/C2

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

5
T1552

Credentials In Files

4
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

5
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Impact

Defacement

1
T1491

Tasks