General

  • Target

    CTF.exe

  • Size

    52KB

  • Sample

    240503-v24nesbg9z

  • MD5

    742202b5ba58f3d7070309cc25d55289

  • SHA1

    30713b70173b58c33af8a85ccd1be2d87359b085

  • SHA256

    27f05dfa1faa3d5e32972dd559db095a9b535f2f5698df247b26dd0a57bf1467

  • SHA512

    fde78c427c05e5be820d3905776491ca29b8dd119cb8ab31d06daeb513e6f4b7769cf024ac45de7fdbdcb3359563b77df507350071d1bda3b17adda119d037cf

  • SSDEEP

    768:uL2+qG2JR4W4HFDuayfrxym0EYOubkLyGQ0TqU6GO5hF8cHJ:HdunJuVDUlbkGGQOqU6GO5b3p

Malware Config

Extracted

Family

xworm

C2

0.tcp.eu.ngrok.io:15487

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Targets

    • Target

      CTF.exe

    • Size

      52KB

    • MD5

      742202b5ba58f3d7070309cc25d55289

    • SHA1

      30713b70173b58c33af8a85ccd1be2d87359b085

    • SHA256

      27f05dfa1faa3d5e32972dd559db095a9b535f2f5698df247b26dd0a57bf1467

    • SHA512

      fde78c427c05e5be820d3905776491ca29b8dd119cb8ab31d06daeb513e6f4b7769cf024ac45de7fdbdcb3359563b77df507350071d1bda3b17adda119d037cf

    • SSDEEP

      768:uL2+qG2JR4W4HFDuayfrxym0EYOubkLyGQ0TqU6GO5hF8cHJ:HdunJuVDUlbkGGQOqU6GO5b3p

    • Detect Xworm Payload

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • ModiLoader Second Stage

    • Command and Scripting Interpreter: PowerShell

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

    • Modifies Installed Components in the registry

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • UPX packed file

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

    • Adds Run key to start application

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks