MALICIOUS
80
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
The file is an XLS spreadsheet with a significant amount of slack space, indicating potential for embedded malicious content or exploit code. The PEB access heuristic suggests an attempt to interact with the process environment, likely to facilitate an exploit. While no specific exploit or payload is directly identified, the combination of these factors points to a malicious document designed to leverage an unknown vulnerability.
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 86,016 bytes but its declared streams total only 21,308 bytes — 64,708 bytes (75%) 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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