General
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Target
https://bazaar.abuse.ch/download/de96af271bf52bdcecaaf555a711f8a1397ed4b8be0d9c16f483253d29deaf62/
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Sample
250425-ltb4rssth1
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://bazaar.abuse.ch/download/de96af271bf52bdcecaaf555a711f8a1397ed4b8be0d9c16f483253d29deaf62/
Resource
win10v2004-20250314-en
Malware Config
Extracted
C:\Users\Admin\HPvdi8peh.README.txt
Targets
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Target
https://bazaar.abuse.ch/download/de96af271bf52bdcecaaf555a711f8a1397ed4b8be0d9c16f483253d29deaf62/
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Lockbit family
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Rule to detect Lockbit 3.0 ransomware Windows payload
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Renames multiple (691) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Creates new service(s)
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Downloads MZ/PE file
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Drops file in Drivers directory
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Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Event Triggered Execution: Image File Execution Options Injection
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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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.
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Executes dropped EXE
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Loads dropped DLL
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Modifies system executable filetype association
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Adds Run key to start application
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops desktop.ini file(s)
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory
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Sets desktop wallpaper using registry
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
4AppInit DLLs
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
4AppInit DLLs
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Defense Evasion
Indicator Removal
2Clear Persistence
1File Deletion
1Modify Registry
5Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1