MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The file is an OLE document with significant slack space and an appended executable payload, indicating it is likely a dropper. The presence of OLE-specific heuristics and the file type suggest an exploit targeting Microsoft Excel. While no specific VBA or script content was extracted, the overall structure points to a malicious document designed to execute arbitrary code.
Heuristics 3
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PEB access via FS segment (x86) high SC_PEB_ACCESSPEB access via FS segment (x86)
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 186,310 bytes but its declared streams total only 21,308 bytes — 165,002 bytes (89%) 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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OLE file has appended executable-looking payload bytes high OLE_APPENDED_PAYLOADOLE compound file contains a large high-entropy region beyond the declared major streams and that region includes shellcode, PE, or loader API markers. This is a payload-carrier signal, not a specific CVE attribution by itself.
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