General
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Target
https://www.revouninstaller.com/start-freeware-download-portable/
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Sample
230330-smrn7sdb75
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://www.revouninstaller.com/start-freeware-download-portable/
Resource
win10v2004-20230221-en
Malware Config
Targets
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Target
https://www.revouninstaller.com/start-freeware-download-portable/
Score8/10-
Blocklisted process makes network request
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Downloads MZ/PE file
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Drops file in Drivers directory
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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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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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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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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