Extracted

• • Target
    www.yorokeikoku.com_nano.exe
  • Size 64KB
  • SHA256 9461c884d1b48e4772176615be06e116552eba96d98e0f83b9364380cdc182bf
  • MD5 642e59d3b993b2bab4ed0d44666f1b23
  • SHA1 21e5c48ea8819c0315ae3fde5e4f19155793e637
  • SHA512 858787fe81b2e44eae1e3a9db3d17e284488243213e2500d747133d8eca25886fda3531c7e83b717b898a38abaf16fd8fd01358544c73ec8694acfbe5fbed702
  • SSDEEP 1536:OaCGCeURVZeuPjmOkMf/9fOpuAA2WCc3Vnw3uagnm:1PwVZDPCo39fOplA2WCc3Vw3urm
  • TLSH
    T1D553D88477FA8620E5BE4AFE4D31A5114731F877AC23D78E0684449E1A73745CEE8B2B
  • 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

    defense_evasion
  behavioral1behavioral2