General
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Target
https://d1vdn3r1396bak.cloudfront.net/installer/4894231261231625/909154
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Sample
240702-tw1txa1dmd
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://d1vdn3r1396bak.cloudfront.net/installer/4894231261231625/909154
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
https://d1vdn3r1396bak.cloudfront.net/installer/4894231261231625/909154
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Cobalt Strike reflective loader
Detects the reflective loader used by Cobalt Strike.
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Event Triggered Execution: Image File Execution Options Injection
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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 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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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
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Active Setup
1Event Triggered Execution
2Image File Execution Options Injection
1Component Object Model Hijacking
1Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Active Setup
1Event Triggered Execution
2Image File Execution Options Injection
1Component Object Model Hijacking
1Create or Modify System Process
1Windows Service
1Defense Evasion
Modify Registry
5Impair Defenses
1File and Directory Permissions Modification
1Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1