General

  • Target

    XClient.exe

  • Size

    62KB

  • Sample

    240804-fretzsxbkm

  • MD5

    0ec8fc74616f174746cb50e46d08d73a

  • SHA1

    082c2fee8f1f1404b5299083428cf7fd769076a5

  • SHA256

    2b105bc9141fb923b548a761f733a0bbd5ba732d317c83287a2daf091fac9f7e

  • SHA512

    d499b24adcca2401e966b03d3369506b7ff534117aff65cdb070ab6cc3dc11abc653fb511eae52c6dfa742eb75ea592695e2b62f3b26f53d839c945ba206e05d

  • SSDEEP

    1536:rc7XNZ0lMLslvRXTFyPIBbP+Q+GGI6jyIO+tb:kQGslvR9bP+Q+GqyIO+tb

Malware Config

Extracted

Family

xworm

C2

r-insert.gl.at.ply.gg:43251

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Extracted

Path

C:\Users\Admin\Documents\@[email protected]

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

    • Target

      XClient.exe

    • Size

      62KB

    • MD5

      0ec8fc74616f174746cb50e46d08d73a

    • SHA1

      082c2fee8f1f1404b5299083428cf7fd769076a5

    • SHA256

      2b105bc9141fb923b548a761f733a0bbd5ba732d317c83287a2daf091fac9f7e

    • SHA512

      d499b24adcca2401e966b03d3369506b7ff534117aff65cdb070ab6cc3dc11abc653fb511eae52c6dfa742eb75ea592695e2b62f3b26f53d839c945ba206e05d

    • SSDEEP

      1536:rc7XNZ0lMLslvRXTFyPIBbP+Q+GGI6jyIO+tb:kQGslvR9bP+Q+GqyIO+tb

    • 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

    • UAC bypass

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Command and Scripting Interpreter: PowerShell

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

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • 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 Enterprise v15

Tasks