MALICIOUS
80
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The sample is a malicious Microsoft Word document. Static analysis detected a heuristic indicating an attempt to exploit a vulnerability via a GetPC stub, commonly used in shellcode execution. The large amount of slack space in the OLE structure further suggests obfuscation or embedded exploit code. No specific family could be identified, and no document body or scripts were available for further analysis.
Heuristics 2
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x86 GetPC stub (CALL $+5; POP EAX) high SC_GETPC_CALLx86 GetPC stub (CALL $+5; POP EAX)
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 110,081 bytes but its declared streams total only 16,536 bytes — 93,545 bytes (85%) 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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