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Overview

overview

8

Static

static

3

TRXLoader.exe

windows10-2004-x64

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General

  • Target

    TRXLoader.exe

  • Size

    829KB

  • Sample

    230504-tzm28afe8z

  • MD5

    8ea203015739494c182dcf1b5289aa60

  • SHA1

    f6c99e81222a9bffad9aa3893980240f507b4e63

  • SHA256

    b9ec6a75cac5fc884f7ce55c38a37548957a71f7380306877eee1e4f01865906

  • SHA512

    81bcf4704e09c36789bde28812e24c2c5052396f171b4a493dcb9475044504071552eccc9c5f60704316e1d4acbed414ed17e04ae3fc6cb245a868adba26a8c5

  • SSDEEP

    24576:ZfNYjwaj4aGzO5gm0WetK4Fj7vwWWpXHHNmT1Gp3Zy8kOvRVP1sfanHJK/GA8lkm:vYjDj4apRHetK4ZfWpXHHNmT1Gp3Zy87

Score
8/10
persistenceransomware

Malware Config

Targets

    • Target

      TRXLoader.exe

    • Size

      829KB

    • MD5

      8ea203015739494c182dcf1b5289aa60

    • SHA1

      f6c99e81222a9bffad9aa3893980240f507b4e63

    • SHA256

      b9ec6a75cac5fc884f7ce55c38a37548957a71f7380306877eee1e4f01865906

    • SHA512

      81bcf4704e09c36789bde28812e24c2c5052396f171b4a493dcb9475044504071552eccc9c5f60704316e1d4acbed414ed17e04ae3fc6cb245a868adba26a8c5

    • SSDEEP

      24576:ZfNYjwaj4aGzO5gm0WetK4Fj7vwWWpXHHNmT1Gp3Zy8kOvRVP1sfanHJK/GA8lkm:vYjDj4apRHetK4ZfWpXHHNmT1Gp3Zy87

    Score
    8/10
    persistenceransomware

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

      ransomware

    • .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

    • Adds Run key to start application

      persistence

    • Drops Chrome extension

    • 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

      ransomware

    • Suspicious use of SetThreadContext

    behavioral1

MITRE ATT&CK Enterprise v6

Tasks