MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
T1566.001 Spearphishing Attachment
The sample is a Microsoft Word document that exploits CVE-2006-6456, a vulnerability related to malformed table SPRM data. The presence of VirtualAlloc, LoadLibrary, and GetProcAddress API calls suggests the document attempts to allocate memory and load external code, likely to execute a payload. The large slack space anomaly further indicates potential obfuscation or embedded malicious content.
Heuristics 6
-
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.
-
Reference to LoadLibrary API high SC_STR_LOADLIBRARYReference to LoadLibrary API
-
Reference to GetProcAddress API high SC_STR_GETPROCADDRESSReference to GetProcAddress API
-
OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 159,744 bytes but its declared streams total only 94,801 bytes — 64,943 bytes (41%) 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).
-
Reference to VirtualAlloc API medium SC_STR_VIRTUALALLOCReference to VirtualAlloc API
-
Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://schemas.openxmlformats.org/drawingml/2006/main
Open this report in the interactive analyzer, or submit your own file for analysis.