General

  • Target
    a5828e4832274385b9645d39434e8038a31692ed6ba9948c4ec00e87c70097dd.zip
  • Size 1KB
  • Sample260813-ychansen3v
  • SHA256 1bc859a01c3f6e65fea6686cf6e669a64efa072bfdf008066debf6e87428e839
  • MD5 SHA1 SHA512 TLSH

Malware Config

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://yeriaco.vu/scr/STjude.msi

Targets

    • Target
      a5828e4832274385b9645d39434e8038a31692ed6ba9948c4ec00e87c70097dd
    • Size 2KB
    • SHA256 a5828e4832274385b9645d39434e8038a31692ed6ba9948c4ec00e87c70097dd
    • MD5 SHA1 SHA512 TLSH
    • Badlisted process makes network request

      Network request originating from process or tool commonly abused by malware.

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • Checks computer location settings

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

    • ConnectWise ScreenConnect remote access tool

      ConnectWise ScreenConnect is a remote desktop tool that can be used as a backdoor.

    • 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

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Boot or Logon Autostart Execution: Authentication Package

      Suspicious Windows Authentication Registry Modification.

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks