MALICIOUS
80
Risk Score
Malware Insights
MITRE ATT&CK
T1204 Malicious File
T1204.002 Malicious File: Malicious Attachment
The file is an OLE Excel spreadsheet with a large slack space anomaly, indicating potential obfuscation or embedded malicious content. A high-severity heuristic firing for PEB access suggests an attempt to evade detection or exploit a vulnerability. While no specific document body content or scripts were extracted, the combination of these factors strongly suggests a malicious intent, likely involving exploitation of the Excel application itself to download and execute a secondary payload.
Heuristics 2
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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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