General

  • Target

    XClient.exe

  • Size

    81KB

  • Sample

    240605-vhw48sce2t

  • MD5

    6d60b4275e8e67c0187b4f85aa014aa3

  • SHA1

    130d9da9f54ac8c09e0f9ec9cfb0e96f013e1784

  • SHA256

    9380c29aaccc2fcbf1734ff093b489ced5ba68006a863e25d7d601b6f8d69a52

  • SHA512

    806685f2920ee62250f9caefea95ece9ea822cbcec97f0c53dd3318faec55b07c3ade1b7c3ecb8b2e653bbcf999a876b8585c8cb1fc822e2d286921f3e0499ef

  • SSDEEP

    1536:lN9TPsJ5ZH4TUi57kALbm51vjOIJZ6tAPT4OTetBi7q7g:39TMH4TfkALbmbaT+4OaLLg

Malware Config

Extracted

Family

xworm

Version

3.0

C2

lunassworld-50930.portmap.host:50930

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      XClient.exe

    • Size

      81KB

    • MD5

      6d60b4275e8e67c0187b4f85aa014aa3

    • SHA1

      130d9da9f54ac8c09e0f9ec9cfb0e96f013e1784

    • SHA256

      9380c29aaccc2fcbf1734ff093b489ced5ba68006a863e25d7d601b6f8d69a52

    • SHA512

      806685f2920ee62250f9caefea95ece9ea822cbcec97f0c53dd3318faec55b07c3ade1b7c3ecb8b2e653bbcf999a876b8585c8cb1fc822e2d286921f3e0499ef

    • SSDEEP

      1536:lN9TPsJ5ZH4TUi57kALbm51vjOIJZ6tAPT4OTetBi7q7g:39TMH4TfkALbmbaT+4OaLLg

    • 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#.

    • 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.

    • Checks computer location settings

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

    • Deletes itself

    • 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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

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

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

5
T1005

Email Collection

1
T1114

Tasks