Extracted

• • Target
    https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Virus/WinNuke.98.exe

  Score

  10^/10

  defense_evasiondiscoveryexecutionchimeraimpactpersistenceransomwarespywarestealerevasioncerbernabucurprivilege_escalationtrojan

  • Chimera Ransomware Loader DLL

    Drops/unpacks executable file which resembles Chimera's Loader.dll.

    ransomware

  • Family: Cerber

    Cerber is a widely used ransomware-as-a-service (RaaS), first seen in 2017.

    ransomwarecerber

  • Family: Chimera

    Ransomware which infects local and network files, often distributed via Dropbox links.

    ransomwarechimera

  • Family: Nabucur

    Nabucur is a ransomware first seen in 2015.

    ransomwarenabucur

  • Modifies Windows Defender DisableAntiSpyware settings

    evasiontrojan

  • Modifies Windows Defender Real-time Protection settings

    defense_evasiontrojan

  • Modifies visibility of file extensions in Explorer

    defense_evasion

  • UAC bypass

    defense_evasiontrojan

  • Deletes shadow copies

    Ransomware often targets backup files to inhibit system recovery.

    ransomwaredefense_evasionimpactexecution

  • Renames multiple (342) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware

  • Badlisted process makes network request

    Network request originating from process or tool commonly abused by malware.

  • Contacts a large (1122) amount of remote hosts

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

    discovery

  • Disables RegEdit via registry modification

    defense_evasion

  • Disables Task Manager via registry modification

    defense_evasion

  • Disables use of System Restore points

    defense_evasion

  • Downloads MZ/PE file

  • 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

  • Executes dropped EXE

  • Reads user/profile data of web browsers

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

    spywarestealer

  • Adds Run key to start application

    persistence

  • Checks whether UAC is enabled

    defense_evasiontrojan

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives

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

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

    discovery

  • ConfuserEx .NET packer

    Detects ConfuserEx .NET packer.

  • Drops autorun.inf file

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in System32 directory

  • Executes a VBScript file via the Windows Script Host.

    execution

  • Sets desktop wallpaper using registry

    ransomware
  behavioral1behavioral2