General

  • Target

    uzpn is coolio.exe

  • Size

    76KB

  • Sample

    240420-2mzt9abh43

  • MD5

    3a95b8b68f29409589094c4497b9c050

  • SHA1

    8be1240201d17f52605e3c873ea70e612a088484

  • SHA256

    cc4387111fef858ae0c66c19bab6b13569789117c3b8a464797cc4a5db2198ef

  • SHA512

    841ced2e66d73f6fec1187d657179fb7bfbd4b1daa20330007ea62c5c6e74c6580cbf8d4dd1f01b0227f524bf56650ec9337d822746de9e29f24854e1b26c849

  • SSDEEP

    1536:pPQqwzNzpDFLYVUP8LjVtzBwUChnwl7K5bH9CPYFyxU/O+6NWppd:pyNFDiUUVXRF2bHIUyxU/O5NE/

Malware Config

Extracted

Family

xworm

C2

uk2.localto.net:34675

Attributes
  • Install_directory

    %AppData%

  • install_file

    Google.exe

Targets

    • Target

      uzpn is coolio.exe

    • Size

      76KB

    • MD5

      3a95b8b68f29409589094c4497b9c050

    • SHA1

      8be1240201d17f52605e3c873ea70e612a088484

    • SHA256

      cc4387111fef858ae0c66c19bab6b13569789117c3b8a464797cc4a5db2198ef

    • SHA512

      841ced2e66d73f6fec1187d657179fb7bfbd4b1daa20330007ea62c5c6e74c6580cbf8d4dd1f01b0227f524bf56650ec9337d822746de9e29f24854e1b26c849

    • SSDEEP

      1536:pPQqwzNzpDFLYVUP8LjVtzBwUChnwl7K5bH9CPYFyxU/O+6NWppd:pyNFDiUUVXRF2bHIUyxU/O5NE/

    • 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)

    • Enumerates connected drives

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

    • Looks up external IP address via web service

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

    • Sets desktop wallpaper using registry

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

2
T1120

Collection

Data from Local System

5
T1005

Email Collection

1
T1114

Impact

Defacement

1
T1491

Tasks