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

Modifies system executable filetype association

Reads user/profile data of local email clients

Email clients store some user data on disk where infostealers will often target it.

Reads user/profile data of web browsers

Infostealers often target stored browser data, which can include saved credentials etc.

Registers COM server for autorun

UPX packed file

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

Unexpected DNS network traffic destination

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Adds Run key to start application

Checks for any installed AV software in registry

Checks installed software on the system

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

Checks whether UAC is enabled

Creates a large amount of network flows

This may indicate a network scan to discover remotely running services.

Drops desktop.ini file(s)

Enumerates connected drives

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

Legitimate hosting services abused for malware hosting/C2

Writes to the Master Boot Record (MBR)

Bootkits write to the MBR to gain persistence at a level below the operating system.

AutoIT Executable

AutoIT scripts compiled to PE executables.

Checks system information in the registry

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

Drops file in System32 directory