MALICIOUS
60
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
The sample is an encrypted OOXML file identified as an exploit carrier. The encryption with a default password and the presence of ActiveX and embedded macro documents suggest it is designed to deliver a malicious payload. The exact nature of the payload cannot be determined without further analysis of the embedded components.
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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