General
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Target
SeroXen-main.zip
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Size
14.7MB
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Sample
240825-rhfkpsybnb
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MD5
0a682639d15acff9fa26d868b718a70e
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SHA1
a87722f3d2454383bb53d63845290d065551104a
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SHA256
424691c17ca850f4b9d390a795b5c416f3df3c37f223c90fcc8544344ae86b5d
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SHA512
479163fde3bc8fe972cda20f4b0d092c51cc511ee9b3f614f62c8a87cbc21e2d6dd71e0fe62d3932122e1706fe528bc52689ad81b5bbf270afa70164f55917d9
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SSDEEP
393216:ob5vzXcRjp+Chy8a8ZUvNKz5QMBYkdDBV4Xfdaup6E94D:ob1rm4Chy8avvwvBJBveQup6E9e
Malware Config
Targets
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Target
SeroXen-main.zip
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Size
14.7MB
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MD5
0a682639d15acff9fa26d868b718a70e
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SHA1
a87722f3d2454383bb53d63845290d065551104a
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SHA256
424691c17ca850f4b9d390a795b5c416f3df3c37f223c90fcc8544344ae86b5d
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SHA512
479163fde3bc8fe972cda20f4b0d092c51cc511ee9b3f614f62c8a87cbc21e2d6dd71e0fe62d3932122e1706fe528bc52689ad81b5bbf270afa70164f55917d9
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SSDEEP
393216:ob5vzXcRjp+Chy8a8ZUvNKz5QMBYkdDBV4Xfdaup6E94D:ob1rm4Chy8avvwvBJBveQup6E9e
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Quasar payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Loads dropped DLL
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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