General
-
Target
smss.exe
-
Size
9.4MB
-
Sample
250413-vkgsbsz1fy
-
MD5
6fde344165a369c3586a68317279247c
-
SHA1
e39b5038f44757a7049c4ebabbd6f62deb280796
-
SHA256
90f414ca8e7fe410a19ea1be7895f8b7df55b35d4289f1bd7c8900b2c886f4b4
-
SHA512
880650d5db061a4aab3df0c99ed1871de4347fb6ed7305c596fa4b75ec57e9c7acecebeeef675ba864d727a898963fe397af08a5d71e7993289299764931349a
-
SSDEEP
196608:uQmw1JCIvqD9gd1lqFxsPE41SfWj+gzjt5s9di7aH6CcvG:uQr9qFxOE41+Wj5zjLs9U7aaRvG
Behavioral task
behavioral1
Sample
smss.exe
Resource
win10ltsc2021-20250410-en
Behavioral task
behavioral2
Sample
smss.exe
Resource
win11-20250410-en
Malware Config
Targets
-
-
Target
smss.exe
-
Size
9.4MB
-
MD5
6fde344165a369c3586a68317279247c
-
SHA1
e39b5038f44757a7049c4ebabbd6f62deb280796
-
SHA256
90f414ca8e7fe410a19ea1be7895f8b7df55b35d4289f1bd7c8900b2c886f4b4
-
SHA512
880650d5db061a4aab3df0c99ed1871de4347fb6ed7305c596fa4b75ec57e9c7acecebeeef675ba864d727a898963fe397af08a5d71e7993289299764931349a
-
SSDEEP
196608:uQmw1JCIvqD9gd1lqFxsPE41SfWj+gzjt5s9di7aH6CcvG:uQr9qFxOE41+Wj5zjLs9U7aaRvG
-
Rms family
-
Grants admin privileges
Uses net.exe to modify the user's privileges.
-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
-
Remote Service Session Hijacking: RDP Hijacking
Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.
-
Modifies Windows Firewall
-
Server Software Component: Terminal Services DLL
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Checks whether UAC is enabled
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Modifies WinLogon
-
AutoIT Executable
AutoIT scripts compiled to PE executables.
-
Drops file in System32 directory
-
Suspicious use of NtSetInformationThreadHideFromDebugger
-
MITRE ATT&CK Enterprise v16
Persistence
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Server Software Component
1Terminal Services DLL
1Privilege Escalation
Account Manipulation
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
2Virtualization/Sandbox Evasion
1