MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The sample is a Microsoft Word document that triggers a critical heuristic for CVE-2006-6456, indicating exploitation of a malformed table SPRM vulnerability. This vulnerability allows for arbitrary code execution. No document body or scripts were extracted, but the heuristic strongly suggests an exploit attempt.
Heuristics 2
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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 273,920 bytes but its declared streams total only 94,801 bytes — 179,119 bytes (65%) 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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