General

  • Target

    srtware loader.exe

  • Size

    1.1MB

  • Sample

    241121-yd1teazmhq

  • MD5

    12395d08dc0bfe12e63605328ddd982f

  • SHA1

    51ceb544e3900fb85fe7aada564d081219464d1d

  • SHA256

    789473143f4f1465f0221fca36ac25f48cae1223f51c9d6219544b27879ec3a6

  • SHA512

    1a26d4de93abf8f5af0b7e6ac3307f6cc6c3ce5b905545788430460c1664efa5637c856db3e994163147e259385da3125d6ff13a39bbade962c95872ea5bd4e4

  • SSDEEP

    24576:vTc28b2Yf2eSf1xZ9a9wwz+NzYbiaCoWTXKjvFQxf:bcbb2UCrZ9wwwKJL2jvFQx

Malware Config

Targets

    • Target

      srtware loader.exe

    • Size

      1.1MB

    • MD5

      12395d08dc0bfe12e63605328ddd982f

    • SHA1

      51ceb544e3900fb85fe7aada564d081219464d1d

    • SHA256

      789473143f4f1465f0221fca36ac25f48cae1223f51c9d6219544b27879ec3a6

    • SHA512

      1a26d4de93abf8f5af0b7e6ac3307f6cc6c3ce5b905545788430460c1664efa5637c856db3e994163147e259385da3125d6ff13a39bbade962c95872ea5bd4e4

    • SSDEEP

      24576:vTc28b2Yf2eSf1xZ9a9wwz+NzYbiaCoWTXKjvFQxf:bcbb2UCrZ9wwwKJL2jvFQx

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • 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

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks