General
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Target
MBSetup.exe
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Size
2.5MB
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Sample
240701-kjypcavfqj
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MD5
4e19e70399076ab58d1160d0fa2664ec
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SHA1
e7ca7e0f1895c6bf60a14d6fbb0ccd4fb10a3134
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SHA256
b9ee60f31be0b7dc3f814c8abbc7caacb6a3e1dc7eb1504b8e831dd42277f8d8
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SHA512
f6338b52cb5a80d960e6b1ec72a28538614782a75d0270cb89e911160c0a0e8e3a4d0f93fb902c70c37cc5f4da0529043776e2c0b59287096f976addb7e584d8
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SSDEEP
49152:6VCZ7CYG91YEzNIbd18dStQyfvE0Z3R0nxiIq2dd0ZyWmX4:eCZ7CXQEzNwABKtQRq2RX4
Behavioral task
behavioral1
Sample
MBSetup.exe
Resource
win10-20240404-en
Malware Config
Targets
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Target
MBSetup.exe
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Size
2.5MB
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MD5
4e19e70399076ab58d1160d0fa2664ec
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SHA1
e7ca7e0f1895c6bf60a14d6fbb0ccd4fb10a3134
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SHA256
b9ee60f31be0b7dc3f814c8abbc7caacb6a3e1dc7eb1504b8e831dd42277f8d8
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SHA512
f6338b52cb5a80d960e6b1ec72a28538614782a75d0270cb89e911160c0a0e8e3a4d0f93fb902c70c37cc5f4da0529043776e2c0b59287096f976addb7e584d8
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SSDEEP
49152:6VCZ7CYG91YEzNIbd18dStQyfvE0Z3R0nxiIq2dd0ZyWmX4:eCZ7CXQEzNwABKtQRq2RX4
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Suspicious use of NtCreateUserProcessOtherParentProcess
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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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Impair Defenses: Safe Mode Boot
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Downloads MZ/PE file
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops file in System32 directory
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
3Subvert Trust Controls
1Install Root Certificate
1