MALICIOUS
60
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1566.002 Spearphishing Link
The OOXML file is encrypted with a default password and contains an OLE object, indicating it is likely an exploit carrier. The presence of an embedded OLE object suggests an attempt to deliver a secondary payload. Without further analysis of the OLE object, the specific attack vector and family remain unclear.
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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