MALICIOUS
180
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious File Execution
T1059.003 Windows Command Shell
The critical heuristic firing for CVE-2006-6456 indicates that this Microsoft Word document is designed to exploit a malformed table SPRM vulnerability. The suspicious cmd.exe invocation suggests that the exploit likely leads to the execution of a command-line payload. The PEB access heuristic further supports the execution of malicious code.
Heuristics 4
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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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PEB access via FS segment (x86) high SC_PEB_ACCESSPEB access via FS segment (x86)
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Suspicious cmd.exe invocation with execution flag high SC_STR_CMDSuspicious cmd.exe invocation with execution flag
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 205,569 bytes but its declared streams total only 94,801 bytes — 110,768 bytes (54%) 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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