General
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Target
PassatHook.exe
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Size
14.7MB
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Sample
250328-x6yn3szybz
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MD5
eafb67ed7734f5561c709b64e6e36b8f
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SHA1
d7d5859993759ef0079a92506a9eed6a11fbdf48
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SHA256
1c1e61fa3ca755e7f1616263bcf948ce2a22ae9d01dac95d4093f59ec5e42ce3
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SHA512
f152eab4c9b4d80ccfb9d9aea316838ea2f10376d681b1371dee02484fa68e8949a05c5fd6536f21939f036bd70cc179e364099d59f3aa3645bb8534b8f2c692
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SSDEEP
393216:l++AaWnPOESRAc5OKC4JLXH9ip87knYOwPecB:HtQtgk4JrYp8gYOUf
Static task
static1
Behavioral task
behavioral1
Sample
PassatHook.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
PassatHook.exe
Resource
win10v2004-20250314-en
Malware Config
Targets
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Target
PassatHook.exe
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Size
14.7MB
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MD5
eafb67ed7734f5561c709b64e6e36b8f
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SHA1
d7d5859993759ef0079a92506a9eed6a11fbdf48
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SHA256
1c1e61fa3ca755e7f1616263bcf948ce2a22ae9d01dac95d4093f59ec5e42ce3
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SHA512
f152eab4c9b4d80ccfb9d9aea316838ea2f10376d681b1371dee02484fa68e8949a05c5fd6536f21939f036bd70cc179e364099d59f3aa3645bb8534b8f2c692
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SSDEEP
393216:l++AaWnPOESRAc5OKC4JLXH9ip87knYOwPecB:HtQtgk4JrYp8gYOUf
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Suspicious use of NtCreateUserProcessOtherParentProcess
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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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Modifies RDP port number used by Windows
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Sets service image path in registry
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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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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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System Binary Proxy Execution: Rundll32
Abuse Rundll32 to proxy execution of malicious code.
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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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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.
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
5Subvert Trust Controls
1Install Root Certificate
1System Binary Proxy Execution
1Rundll32
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1