Extracted

Extracted

Extracted

Extracted

• • Target

    GRGFK_file.exe

  • Size

    50KB

  • MD5

    666248c216a3f63828f739839230f9f6

  • SHA1

    13690837235053762a538b4c5b2b601ec9f6bb22

  • SHA256

    00655d1ac19f7ffeab812a77f9b85f07fced78e7eb27c641b0e0ce25f16963da

  • SHA512

    37e57468a080dbb33ee480ae63d80939ff06050035f168630ba1d8e220e1b4859f78f897a12ba83a514bc97ed7927ee01c6fcca67fbaf479294a529302f7bdde

  • SSDEEP

    768:CT6n3V7i+V39HhHw98cje6O7UgYWE8knmbN8vnoK:7i+/BHw98cyoWE8ks8vnp

  Score

  10^/10

  defense_evasionevasionexecutionpersistencetrojancollectiondiscovery

  • Modifies security service

    evasion

  • UAC bypass

    evasiontrojan

  • Blocklisted process makes network request

  • Command and Scripting Interpreter: PowerShell

    Using powershell.exe command.

    execution

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Creates new service(s)

    persistenceexecution

  • Sets service image path in registry

    persistence

  • Stops running service(s)

    evasionexecution

  • 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

  • Indicator Removal: Clear Windows Event Logs

    Clear Windows Event Logs to hide the activity of an intrusion.

    defense_evasion

  • Loads dropped DLL

  • Accesses Microsoft Outlook profiles

    collection

  • Power Settings

    powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    persistence

  • Drops file in System32 directory

  • Suspicious use of SetThreadContext

  behavioral1behavioral2