Checks BIOS information in registry

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

Checks computer location settings

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

Executes dropped EXE

Loads dropped DLL

UPX packed file

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

Enumerates connected drives

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

Indicator Removal: File Deletion

Adversaries may delete files left behind by the actions of their intrusion activity.

Maps connected drives based on registry

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

Remote Services: SMB/Windows Admin Shares

Adversaries may use Valid Accounts to interact with a remote network share using Server Message Block (SMB).

Drops file in System32 directory