General
- Target lvrium_loader.exe
- Size 344KB
- Sample260626-wl4txsdy8m
- SHA256 ed40f91fcd86dacd06b2425789c7c03e0db12ec45a4cb66c8254ac3ad5d429c1
- MD5 66b911d3ce4327eef9a6eee270f38926
- SHA1 cb5440cd71904d7e53b071ee88289a32841944b4
- SHA512 4849cdfb64cca6f4487feb0b944047de97e858b4f44fab0b756f11e330cc515d5f0c2f86079af8a5b975ee5fcbc5f7a5fe4fcd30d84f4559ca7ffe6664b325ce
- SSDEEP 6144:Xwce+VMaehunSF/ARMo0SA/KgtVeI9h3LaUUlmTAxyidjlX:g0MaUuSF/GVLsKgfh3Lney0
- TLSH T15C74292BE76249FCC157D1388AE3D3B2B030BC4D0334795A27A5DB313F51A645FA9A68
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
lvrium_loader.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
lvrium_loader.exe
Resource
win10ltsc2021-20260513-en
Behavioral task
behavioral3
Sample
lvrium_loader.exe
Resource
win11-20260513-en
Behavioral task
behavioral4
Sample
lvrium_loader.exe
Resource
win11ltsc2024-20260618-en
Malware Config
Targets
-
- Target lvrium_loader.exe
- Size 344KB
- SHA256 ed40f91fcd86dacd06b2425789c7c03e0db12ec45a4cb66c8254ac3ad5d429c1
- MD5 66b911d3ce4327eef9a6eee270f38926
- SHA1 cb5440cd71904d7e53b071ee88289a32841944b4
- SHA512 4849cdfb64cca6f4487feb0b944047de97e858b4f44fab0b756f11e330cc515d5f0c2f86079af8a5b975ee5fcbc5f7a5fe4fcd30d84f4559ca7ffe6664b325ce
- SSDEEP 6144:Xwce+VMaehunSF/ARMo0SA/KgtVeI9h3LaUUlmTAxyidjlX:g0MaUuSF/GVLsKgfh3Lney0
- TLSH T15C74292BE76249FCC157D1388AE3D3B2B030BC4D0334795A27A5DB313F51A645FA9A68
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Modifies WinLogon for persistence
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Adds policy Run key to start application
-
Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
-
Boot or Logon Autostart Execution: Port Monitors
Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.
-
Disables one or more Microsoft Defender components
Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.
-
Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
-
Event Triggered Execution: Image File Execution Options Injection
-
Sets service image path in registry
This determines the executable launched when a service starts. It can be used to establish persistence.
-
Executes dropped EXE
-
Registers new Windows logon scripts automatically executed at logon.
-
Stops running service(s)
-
Adds Run key to start application
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1System Services
1Service Execution
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
6Active Setup
1Port Monitors
1Registry Run Keys / Startup Folder
3Winlogon Helper DLL
1Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
2AppInit DLLs
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
6Active Setup
1Port Monitors
1Registry Run Keys / Startup Folder
3Winlogon Helper DLL
1Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
2AppInit DLLs
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Impair Defenses
2Disable or Modify Tools
1Indicator Removal
2File Deletion
2Modify Registry
5