cryptolocker

- Target
  
  https://github.com/Da2dalus/The-MALWARE-Repo
Score

10^/10

cryptolocker dharma bootkit defense_evasion discovery evasion execution impact macro persistence privilege_escalation ransomware spyware stealer trojan upx xlm
- CryptoLocker
  Ransomware family with multiple variants.
  ransomware cryptolocker
- Dharma
  Dharma is a ransomware that uses security software installation to hide malicious activities.
  ransomware dharma
- Modifies WinLogon for persistence
  persistence
- Modifies Windows Defender Real-time Protection settings
  evasion trojan
- Suspicious use of NtCreateProcessExOtherParentProcess
- UAC bypass
  evasion trojan
- Deletes shadow copies
  Ransomware often targets backup files to inhibit system recovery.
  ransomware defense_evasion impact execution
- Renames multiple (292) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Boot or Logon Autostart Execution: Active Setup
  Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
  persistence
- Disables RegEdit via registry modification
  evasion
- Disables Task Manager via registry modification
  evasion
- Disables use of System Restore points
  evasion
- Downloads MZ/PE file
- Drops file in Drivers directory
- Event Triggered Execution: Image File Execution Options Injection
  persistence
- Modifies Windows Firewall
  evasion
- Sets service image path in registry
  persistence
- Suspicious Office macro
  Office document equipped with 4.0 macros.
  macro xlm
- Uses Session Manager for persistence
  Creates Session Manager registry key to run executable early in system boot.
  persistence
- Checks computer location settings
  Looks up country code configured in the registry, likely geofence.
- Drops startup file
- Event Triggered Execution: Component Object Model Hijacking
  Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
  persistence privilege_escalation
- Executes dropped EXE
- Impair Defenses: Safe Mode Boot
  defense_evasion
- Loads dropped DLL
- Reads user/profile data of web browsers
  Infostealers often target stored browser data, which can include saved credentials etc.
  spyware stealer
- UPX packed file
  Detects executables packed with UPX/modified UPX open source packer.
  upx
- Windows security modification
  evasion trojan
- Adds Run key to start application
  persistence
- 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.
  discovery
- Checks whether UAC is enabled
  evasion trojan
- Drops desktop.ini file(s)
- 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.
  bootkit persistence
- 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
behavioral1