Resubmissions

02/08/2026, 03:55

260802-egwt3scq7y8

02/08/2026, 03:53

260802-efwgxssxhv8

General

  • Target
    MBSetup-1.1.exe
  • Size 2.8MB
  • Sample260802-egwt3scq7y
  • SHA256 918a02c8513e819b011ea79ffb5f0a87ddcf1ab108a37efd5959c350fe0e68e4
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      MBSetup-1.1.exe
    • Size 2.8MB
    • SHA256 918a02c8513e819b011ea79ffb5f0a87ddcf1ab108a37efd5959c350fe0e68e4
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Drops file in Drivers directory

    • Patched UPX-packed file

      Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Impair Defenses: Safe Mode Boot

    • Adds Run key to start application

    • Badlisted process makes network request

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

    • Downloads MZ/PE file

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    • Checks computer location settings

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

    • ConfuserEx .NET packer

      Detects ConfuserEx .NET packer.

    • Drops file in System32 directory

    • 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.

MITRE ATT&CK Enterprise v16

Tasks