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General
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Target
https://uploadnow.io/en/share?utm_source=2rnBsBk
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Sample
250108-sqt9haxjgn
Score
10/10
Malware Config
Targets
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Target
https://uploadnow.io/en/share?utm_source=2rnBsBk
Score10/10-
Detect Umbral payload
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Umbral
Umbral stealer is an opensource moduler stealer written in C#.
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Umbral family
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Drops file in Drivers directory
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Executes dropped EXE
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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Legitimate hosting services abused for malware hosting/C2
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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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Drops file in System32 directory
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