Extracted

• • Target
    cheezu.io_nano.exe
  • Size 64KB
  • SHA256 521c22f06c45980691a356f378b897ddbfdae416c754fd8df902cb94c0597001
  • MD5 0f1e47ebf3504620b8ca8b4e8b453ca5
  • SHA1 78aaa22b5a50638ec5b4e11f5556264829309592
  • SHA512 2e1a5d8c4ccff05549a24f87901f72488058ddc4baed99023f32599f5c945811e1994a72ecc0f79182aa457f31469e2a03c82271a7abe5e3c4c4e6ce2859f62b
  • SSDEEP 1536:aNHwvP1ZP7huTp9R4+N5c3VnwFOVxeua9:aNMPtWp9R4+N5c3VwFOVIuA
  • TLSH
    T13953D64473F98661F2BF49BE4E3182008B71F8639D23E78E0AC5559E1A72B44DDD8B27
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  defense_evasiondiscoveryevasionexecutionnanocoreimpactkeyloggerpersistenceprivilege_escalationransomwarespywarestealertrojan

  • Contains code to disable Windows Defender

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Family: NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

    keyloggertrojanstealerspywarenanocore

  • Modifies Windows Defender DisableAntiSpyware settings

    evasiontrojan

  • Modifies security service

    defense_evasion

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • Grants admin privileges

    Uses net.exe to modify the user's privileges.

  • Command and Scripting Interpreter: PowerShell

    Run Powershell and hide display window.

    execution

  • Disables RegEdit via registry modification

    defense_evasion

  • Disables Task Manager via registry modification

    defense_evasion

  • Drops file in Drivers directory

  • Event Triggered Execution: Image File Execution Options Injection

    persistence

  • Modifies Windows Firewall

    defense_evasion

  • Checks computer location settings

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

  • Creates a file in the Startup directory

    A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

    persistenceprivilege_escalation

  • Disables service(s)

    defense_evasionexecution

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Stops running service(s)

    defense_evasionexecution

  • Adds Run key to start application

    persistence

  • Creates a new local user account

    Uses net.exe to create a new local user account, often for persistence or a backdoor account.

    persistence

  • Discovers running processes

    Running process information can be used to identify security tools or plan follow-on actions.

    discovery

  • Drops file in System32 directory

  • Executes a VBScript file via the Windows Script Host.

    execution

  • Sets desktop wallpaper using registry

    ransomware

  • Suspicious use of NtSetInformationThreadHideFromDebugger

  behavioral1behavioral2