General

  • Target

    Nursultan.exe

  • Size

    336KB

  • Sample

    240222-p9sy1aaa43

  • MD5

    11ea5b76e048445966e926c28a2875c8

  • SHA1

    86cceae0f4107c4a7a4a43cf109b259c6c416083

  • SHA256

    131caa81db3d4289abcead59e78047a30e587b3672269aafbee6c69773f06132

  • SHA512

    50a2df57d0ab34570884ec4b03cb6f76828f7a113712a84908112df31a72d79a80924ccbad0ffbe01125e232ef4d5a57141aee3abe8a4b8abfb24aafef22ce50

  • SSDEEP

    3072:nvrQkJaztJqA3XbmJPO4AfNUyInA/e0dV9O8W4JWGh0hWT:nvr1SJDXbOqip0dV9O8W4w

Malware Config

Extracted

Family

xworm

C2

7.tcp.eu.ngrok.io:14058

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

Targets

    • Target

      Nursultan.exe

    • Size

      336KB

    • MD5

      11ea5b76e048445966e926c28a2875c8

    • SHA1

      86cceae0f4107c4a7a4a43cf109b259c6c416083

    • SHA256

      131caa81db3d4289abcead59e78047a30e587b3672269aafbee6c69773f06132

    • SHA512

      50a2df57d0ab34570884ec4b03cb6f76828f7a113712a84908112df31a72d79a80924ccbad0ffbe01125e232ef4d5a57141aee3abe8a4b8abfb24aafef22ce50

    • SSDEEP

      3072:nvrQkJaztJqA3XbmJPO4AfNUyInA/e0dV9O8W4JWGh0hWT:nvr1SJDXbOqip0dV9O8W4w

    • 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#.

    • Disables RegEdit via registry modification

    • Disables Task Manager via registry modification

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • 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.

MITRE ATT&CK Enterprise v15

Tasks