General
- Target Lock.Julie.exe
- Size 5.9MB
- Sample260507-eje94sew81
- SHA256 6fe3e2b89204368a78e8920afa3420ce70a75052fd54784097f30faaeddf75a3
- MD5 e2ac9e24dce3e923bfe2526f7e4681b7
- SHA1 d1d3aa5b10d95f31b3191e8cbd23913e185ae5cd
- SHA512 4470eae0e48b7c76972b0052397bd6bb6af1a6428b982bd341d82351370f7b592ea2b8d56b46e245c231d86c60ea79e2cc9cb124ac1bbf57f7243672efd149bd
- SSDEEP 49152:k7Ne2hvV5WFgXbVDQHf2lKzqioZYUBxbOaZvf/ud+GMnW3ycatyWtJ5NMofZ/9GZ:
- TLSH T19B5633106F9E7CB5CB58817830AF1E6E1E700F894448E4D727CD69DB678FB409A1F8A6
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
Lock.Julie.exe
Resource
win11-20260130-en
Malware Config
Targets
-
- Target Lock.Julie.exe
- Size 5.9MB
- SHA256 6fe3e2b89204368a78e8920afa3420ce70a75052fd54784097f30faaeddf75a3
- MD5 e2ac9e24dce3e923bfe2526f7e4681b7
- SHA1 d1d3aa5b10d95f31b3191e8cbd23913e185ae5cd
- SHA512 4470eae0e48b7c76972b0052397bd6bb6af1a6428b982bd341d82351370f7b592ea2b8d56b46e245c231d86c60ea79e2cc9cb124ac1bbf57f7243672efd149bd
- SSDEEP 49152:k7Ne2hvV5WFgXbVDQHf2lKzqioZYUBxbOaZvf/ud+GMnW3ycatyWtJ5NMofZ/9GZ:
- TLSH T19B5633106F9E7CB5CB58817830AF1E6E1E700F894448E4D727CD69DB678FB409A1F8A6
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Modifies WinLogon for persistence
-
Suspicious use of NtCreateUserProcessOtherParentProcess
-
Downloads MZ/PE file
-
Drops file in Drivers directory
-
Modifies RDP port number used by Windows
-
Patched UPX-packed file
Sample is packed with UPX but required header fields are zeroed out to prevent unpacking with the default UPX tool.
-
Sets service image path in registry
This determines the executable launched when a service starts. It can be used to establish persistence.
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Deletes itself
-
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
-
Impair Defenses: Safe Mode Boot
-
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.
-
Checks whether UAC is enabled
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Boot or Logon Autostart Execution: Authentication Package
Suspicious Windows Authentication Registry Modification.
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ConfuserEx .NET packer
Detects ConfuserEx .NET packer.
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Drops file in System32 directory
-
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
4Authentication Package
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
4Authentication Package
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
7Subvert Trust Controls
3Install Root Certificate
2SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1