MALICIOUS
80
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The OLE document exhibits an unusually large slack space and contains appended executable payload bytes, indicating it is likely a dropper. The appended payload is detected with high entropy, suggesting it is packed or encrypted. No document body or script content was available for further analysis.
Heuristics 2
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 102,912 bytes but its declared streams total only 16,543 bytes — 86,369 bytes (84%) live in unallocated sector slack. This is the canonical hiding place for pre-macro-era Office exploit payloads (XOR-encoded shellcode reached via a parser pointer-corruption bug in the document structure).
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OLE file has appended executable-looking payload bytes high OLE_APPENDED_PAYLOADOLE compound file contains a large high-entropy region beyond the declared major streams and that region includes shellcode, PE, or loader API markers. This is a payload-carrier signal, not a specific CVE attribution by itself.
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