General

  • Target

    Bootstrapper.exe

  • Size

    391KB

  • Sample

    240827-wck1fsvbmp

  • MD5

    bdd5d27003b233535879ec0f2573332d

  • SHA1

    3ccfe1d152315f62b8b103e1876f554af55f272f

  • SHA256

    3499997283c0c1dd38ffcfdc2303c5c7ddfa4e946c51725b3b754f53780519ed

  • SHA512

    d75a07bed98d1181cdb522cb1d20bacde81d3db7b3825edd1a2aa4c02a88bb61c4501c8d48d4d7a3a84f3ea318f7efb95636bf716bed321fba3dd3b34f80e706

  • SSDEEP

    12288:ZKMLC9Cdzw50KaA07u06ZMLzq2XNHJUX:MFCdzyFf0R6ZMxNHJM

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:19121

goods-flex.gl.at.ply.gg:19121

Attributes
  • Install_directory

    %Public%

  • install_file

    calc.exe

Extracted

Family

phemedrone

C2

https://api.telegram.org/bot6766891578:AAE47sIyviQ0_skRFQtvxeYcndg1C8RFyo4/sendDocument

Targets

    • Target

      Bootstrapper.exe

    • Size

      391KB

    • MD5

      bdd5d27003b233535879ec0f2573332d

    • SHA1

      3ccfe1d152315f62b8b103e1876f554af55f272f

    • SHA256

      3499997283c0c1dd38ffcfdc2303c5c7ddfa4e946c51725b3b754f53780519ed

    • SHA512

      d75a07bed98d1181cdb522cb1d20bacde81d3db7b3825edd1a2aa4c02a88bb61c4501c8d48d4d7a3a84f3ea318f7efb95636bf716bed321fba3dd3b34f80e706

    • SSDEEP

      12288:ZKMLC9Cdzw50KaA07u06ZMLzq2XNHJUX:MFCdzyFf0R6ZMxNHJM

    • Detect Xworm Payload

    • Phemedrone

      An information and wallet stealer written in C#.

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • 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

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

MITRE ATT&CK Enterprise v15

Tasks