General
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Target
444.exe
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Size
2.2MB
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Sample
210219-mxb43kvcga
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MD5
eb154d544f8cb7aeac7700100bfe7c1a
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SHA1
5bc2d79943de6b47768db926704e21e88cb95aa2
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SHA256
e97c6e05b1a3d287151638ffe86229597b188f9aa6d34db255f08dbc11dbfbd8
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SHA512
22964c627143afba28b6b4f05bb93867edabe9842090c85cbc193ef957e26a2cf60660e6f98fbeb8218f5876cfcdb382094c537539e7709014ddc9bef8a2d165
Static task
static1
Behavioral task
behavioral1
Sample
444.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
444.exe
Resource
win10v20201028
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\HOW_TO_RECOVER_YOUR_FILES.txt
35LikWJCjvfHWDZezZXswgqNeuT6gv36YM
http://alumnilou7kzo4vzdedsoe6wnxoggbzsxk7qgnmmlsrf4mzuqchwsjid.onion
Extracted
C:\Users\Admin\Desktop\HOW_TO_RECOVER_YOUR_FILES.txt
35LikWJCjvfHWDZezZXswgqNeuT6gv36YM
http://alumnilou7kzo4vzdedsoe6wnxoggbzsxk7qgnmmlsrf4mzuqchwsjid.onion
Extracted
C:\Users\Admin\AppData\Local\Temp\HOW_TO_RECOVER_YOUR_FILES.txt
35LikWJCjvfHWDZezZXswgqNeuT6gv36YM
http://alumnilou7kzo4vzdedsoe6wnxoggbzsxk7qgnmmlsrf4mzuqchwsjid.onion
Extracted
C:\Users\Admin\Desktop\HOW_TO_RECOVER_YOUR_FILES.txt
35LikWJCjvfHWDZezZXswgqNeuT6gv36YM
http://alumnilou7kzo4vzdedsoe6wnxoggbzsxk7qgnmmlsrf4mzuqchwsjid.onion
Targets
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Target
444.exe
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Size
2.2MB
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MD5
eb154d544f8cb7aeac7700100bfe7c1a
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SHA1
5bc2d79943de6b47768db926704e21e88cb95aa2
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SHA256
e97c6e05b1a3d287151638ffe86229597b188f9aa6d34db255f08dbc11dbfbd8
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SHA512
22964c627143afba28b6b4f05bb93867edabe9842090c85cbc193ef957e26a2cf60660e6f98fbeb8218f5876cfcdb382094c537539e7709014ddc9bef8a2d165
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Modifies Windows Firewall
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Modifies extensions of user files
Ransomware generally changes the extension on encrypted files.
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Modifies file permissions
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Drops desktop.ini file(s)
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Modifies WinLogon
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Suspicious use of NtSetInformationThreadHideFromDebugger
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