General
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Target
nvngx_dlss.dll
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Size
5.8MB
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Sample
241029-ca9fgsscme
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MD5
8de5c0e5b2257874f05b2dbca186dc6a
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SHA1
1e76d52f66d37e804a6c0b93e242fcf2a402705c
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SHA256
788cf3cb6aaba23ae7735a80b0ac34ea62ccdac8851b94ad0a185137c2b72297
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SHA512
75e5724ed2b28e1294a042a05c082346be5a1186f6a8547ba5b9ddd623c5a37872f36c637833133fa88d00e237fffaa619c35976bed558cd66f32b4c153026f5
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SSDEEP
98304:Es2V9unkmnmFZZb5U39X0VFCb5cFUH+MRKqzFRShhDzij5IZdaaaU4ksdW80t/5:E9unjnu/beiQMU15UhNej5IsUOdWD15
Malware Config
Targets
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Target
nvngx_dlss.dll
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Size
5.8MB
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MD5
8de5c0e5b2257874f05b2dbca186dc6a
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SHA1
1e76d52f66d37e804a6c0b93e242fcf2a402705c
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SHA256
788cf3cb6aaba23ae7735a80b0ac34ea62ccdac8851b94ad0a185137c2b72297
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SHA512
75e5724ed2b28e1294a042a05c082346be5a1186f6a8547ba5b9ddd623c5a37872f36c637833133fa88d00e237fffaa619c35976bed558cd66f32b4c153026f5
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SSDEEP
98304:Es2V9unkmnmFZZb5U39X0VFCb5cFUH+MRKqzFRShhDzij5IZdaaaU4ksdW80t/5:E9unjnu/beiQMU15UhNej5IsUOdWD15
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Detect Umbral payload
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Umbral family
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Blocklisted process makes network request
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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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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Suspicious use of NtSetInformationThreadHideFromDebugger
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