Overview

overview

10

Static

static

1

Update_bro...436.js

windows10-1703-x64

10

Update_bro...436.js

windows10-2004-x64

10

Update_bro...436.js

windows11-21h2-x64

10

Sharing

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General

  • Target
    Update_browser_17.6436.js
  • Size 296KB
  • Sample240109-xyn5nshabl
  • SHA256 d8f2134faeed8cf62887aaad8403ab7f29b5cd26cd03b81cb59774442d97fc0e
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
netsupportpersistencerat

Malware Config

Extracted

Language

  • ps1

Source
URLs
  • ps1.dropper

    https://boxtechcompany.com/data.php?8796
  • exe.dropper

    https://boxtechcompany.com/data.php?8796

Extracted

Language

  • ps1

Source
URLs
  • ps1.dropper

    https://boxtechcompany.com/data.php?8534
  • exe.dropper

    https://boxtechcompany.com/data.php?8534

Extracted

Language

  • ps1

Source
URLs
  • ps1.dropper

    https://boxtechcompany.com/data.php?5381
  • exe.dropper

    https://boxtechcompany.com/data.php?5381

Targets

    • Target
      Update_browser_17.6436.js
    • Size 296KB
    • SHA256 d8f2134faeed8cf62887aaad8403ab7f29b5cd26cd03b81cb59774442d97fc0e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    netsupportpersistencerat

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

      ratnetsupport

    • Blocklisted process makes network request

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks