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 high-severity heuristic firing for an x86 GetPC stub, indicating the presence of shellcode. Additionally, an OLE slack anomaly suggests the document may contain hidden or obfuscated data. The combination of these findings points to an attempt to exploit a client execution vulnerability.
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 116,465 bytes but its declared streams total only 16,536 bytes — 99,929 bytes (86%) 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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