MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.005 Visual Basic
The critical heuristic firing for CVE-2006-6456 indicates that this Microsoft Word document is malformed and likely exploits a vulnerability related to table structures. Although VBA macros could not be extracted due to an unsupported format, the presence of this specific CVE strongly suggests an exploit attempt. The document body contains heavily corrupted text, providing no discernible user-facing content, further supporting the exploit-driven nature of the file.
Heuristics 3
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CVE-2006-6456 — Microsoft Word malformed table SPRM critical CVE exact CVE_2006_6456WordDocument contains a malformed table border-color SPRM in the CVE-2006-6456 shape: a valid table-SPRM cluster is followed by an invalid high-byte 0xFF SPRM where Word expects a normal sprmTBrc*Cv record. Vulnerable Word 2000/2002/2003 parsers corrupt memory while handling this malformed data structure.
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 171,426 bytes but its declared streams total only 94,801 bytes — 76,625 bytes (45%) 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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Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTEDolevba could not extract VBA macros (PermissionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
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