MALICIOUS
60
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1137.003 DLL Search Order Hijacking
The sample is an encrypted OOXML file that contains an embedded OLE object, indicating it is likely an exploit carrier. The default encryption suggests a common, potentially automated, delivery method. While no specific script or macro content was directly analyzed, the presence of an embedded exploit carrier strongly suggests the intent to execute malicious code upon opening.
Heuristics 2
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Default-encrypted OOXML exploit carrier layout high OOXML_ENCRYPTED_EXPLOIT_CARRIER_SHAPEDefault-password encrypted OOXML package contains embedded OLE object parts and additional activation/decoy parts. This layout is common in malicious Excel exploit delivery and requires inspecting the decrypted package.
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Office OOXML encrypted with default VelvetSweatshop password medium OFFICE_DEFAULT_PASSWORD_ENCRYPTED_OOXMLOLE EncryptedPackage decrypts with Excel's built-in VelvetSweatshop password. Office opens this transparently, and malware uses it to hide OOXML exploit parts from scanners that only inspect the outer OLE container.
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