General
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Target
https://www.google.com/search?q=how+to+download+a+windows+10+iso&rlz=1C1GCEA_enUS1102US1102&oq=how+to+download+a+windows+&gs_lcrp=EgZjaHJvbWUqBwgBEAAYgAQyBwgAEAAYgAQyBwgBEAAYgAQyBwgCEAAYgAQyBggDEEUYOTIHCAQQABiABDIHCAUQABiABDIHCAYQABiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCDc4NjZqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8&safe=active&ssui=on
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Sample
240417-rsxa7sdd6x
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://www.google.com/search?q=how+to+download+a+windows+10+iso&rlz=1C1GCEA_enUS1102US1102&oq=how+to+download+a+windows+&gs_lcrp=EgZjaHJvbWUqBwgBEAAYgAQyBwgAEAAYgAQyBwgBEAAYgAQyBwgCEAAYgAQyBggDEEUYOTIHCAQQABiABDIHCAUQABiABDIHCAYQABiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCDc4NjZqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8&safe=active&ssui=on
Resource
win10v2004-20240412-en
Malware Config
Extracted
C:\Users\Admin\Downloads\!Please Read Me!.txt
wannacry
15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1
Extracted
revengerat
Guest
0.tcp.ngrok.io:19521
RV_MUTEX
Targets
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Target
https://www.google.com/search?q=how+to+download+a+windows+10+iso&rlz=1C1GCEA_enUS1102US1102&oq=how+to+download+a+windows+&gs_lcrp=EgZjaHJvbWUqBwgBEAAYgAQyBwgAEAAYgAQyBwgBEAAYgAQyBwgCEAAYgAQyBggDEEUYOTIHCAQQABiABDIHCAUQABiABDIHCAYQABiABDIHCAcQABiABDIHCAgQABiABDIHCAkQABiABNIBCDc4NjZqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8&safe=active&ssui=on
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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RevengeRat Executable
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mimikatz is an open source tool to dump credentials on Windows
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Blocklisted process makes network request
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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Uses the VBS compiler for execution
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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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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Sets desktop wallpaper using registry
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Suspicious use of SetThreadContext
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