MALICIOUS
120
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PowerPoint file with a significant amount of appended data, identified as an executable payload. Heuristics indicate a NOP sled and high tail entropy, consistent with shellcode. The large slack space further suggests the file has been tampered with to conceal the malicious payload. The file's structure and appended payload strongly indicate it's intended to deliver malware.
Heuristics 3
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NOP sled detected high SC_NOP_SLEDFound 20+ consecutive 0x90 bytes
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 2,054,041 bytes but its declared streams total only 18,081 bytes — 2,035,960 bytes (99%) 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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