chimera

General

Target

https://github.com
Sample

240821-myewwsyakp

Score

10^/10

Malware Config

Targets

- Target
  
  https://github.com
Score

10^/10

chimera bootkit defense_evasion discovery evasion persistence privilege_escalation ransomware spyware stealer trojan upx
- Chimera
  Ransomware which infects local and network files, often distributed via Dropbox links.
  ransomware chimera
- Process spawned unexpected child process
  This typically indicates the parent process was compromised via an exploit or macro.
- Suspicious use of NtCreateProcessExOtherParentProcess
- Renames multiple (3490) files with added filename extension
  This suggests ransomware activity of encrypting all the files on the system.
  ransomware
- Blocklisted process makes network request
- 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
- Downloads MZ/PE file
- Drops file in Drivers directory
- Event Triggered Execution: Image File Execution Options Injection
  persistence
- Sets service image path in registry
  persistence
- 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.
- 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)
- 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.
- Writes to the Master Boot Record (MBR)
  Bootkits write to the MBR to gain persistence at a level below the operating system.
  bootkit persistence
- Checks system information in the registry
  System information is often read in order to detect sandboxing environments.
- Drops file in System32 directory
behavioral1