MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1559.001 Component Object Model Hijacking
T1204.002 Malicious File
The sample is an encrypted OOXML file identified as malicious. High-severity heuristics indicate the presence of an Equation Editor OLE object, a known exploit carrier. The encryption with a default password further suggests malicious intent, likely to obscure the exploit payload. No document body or scripts were extractable, limiting further analysis of the specific lure or payload delivery.
Heuristics 3
-
Equation Editor OLE object high OLE_EQUATION_EDITORDefault-encrypted OOXML embedded OLE object xl/embeddings/oleObject1.bin contains the Equation Editor CLSID, the legacy component exploited by CVE-2017-11882, CVE-2018-0802, and CVE-2018-0798.
-
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.
-
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.
Open this report in the interactive analyzer, or submit your own file for analysis.