General

  • Target

    upx.exe

  • Size

    76.6MB

  • Sample

    250102-jkqvfs1pcz

  • MD5

    287ef5883f474f1a6200334d2e16b28b

  • SHA1

    01d363c29e162472dbfaa4d763d444e34a3245d7

  • SHA256

    c2f811fed90496c1a1bab9ea621339d2f1eec8ab20da004e024394d3ca35e63b

  • SHA512

    d4eddd3af18e4a2d7d222f93a7893130cb56b1e233fe189bafa15ef9b626066ca0e832039b56f622e443633a293d66f7331848f2e437993c50705a4ef3ac0aa8

  • SSDEEP

    1572864:51laWaDFmUSk8IpG7V+VPhqYdfzE7ylhBiYweyJulZUdg2rUkR/aqZ9UW:51AZFmUSkB05awcfjLGpuSrt9U

Malware Config

Targets

    • Target

      upx.exe

    • Size

      76.6MB

    • MD5

      287ef5883f474f1a6200334d2e16b28b

    • SHA1

      01d363c29e162472dbfaa4d763d444e34a3245d7

    • SHA256

      c2f811fed90496c1a1bab9ea621339d2f1eec8ab20da004e024394d3ca35e63b

    • SHA512

      d4eddd3af18e4a2d7d222f93a7893130cb56b1e233fe189bafa15ef9b626066ca0e832039b56f622e443633a293d66f7331848f2e437993c50705a4ef3ac0aa8

    • SSDEEP

      1572864:51laWaDFmUSk8IpG7V+VPhqYdfzE7ylhBiYweyJulZUdg2rUkR/aqZ9UW:51AZFmUSkB05awcfjLGpuSrt9U

    • Enumerates VirtualBox DLL files

    • 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

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • A potential corporate email address has been identified in the URL: =@L

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks