General
- Target https://updatecdn.meeting.qq.com/cos/20260522192917/TMRInstaller_1410000391_3.43.430.511.x64.exe
- Sample260825-lkfetszcrc
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://updatecdn.meeting.qq.com/cos/20260522192917/TMRInstaller_1410000391_3.43.430.511.x64.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target https://updatecdn.meeting.qq.com/cos/20260522192917/TMRInstaller_1410000391_3.43.430.511.x64.exe
-
Modifies firewall policy service
-
Suspicious use of NtCreateUserProcessOtherParentProcess
-
Downloads MZ/PE file
-
Disables service(s)
-
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.
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Power Settings
powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Checks system information in the registry
System information is often read in order to detect sandboxing environments.
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1System Services
1Service Execution
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Component Object Model Hijacking
1Power Settings
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3Pre-OS Boot
1Bootkit
1