MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The OLE document exhibits significant slack space and appended payload bytes, indicating it's likely a container for a malicious executable. The 'OFFICE_FORMAT_UNSUPPORTED' heuristic suggests that VBA macros could not be extracted, which is common for certain types of malicious Office documents. The presence of appended payload bytes is a strong indicator of malicious intent, though the specific family cannot be determined without further analysis of the payload.
Heuristics 3
-
OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 89,110 bytes but its declared streams total only 16,543 bytes — 72,567 bytes (81%) 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).
-
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.
-
Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTEDolevba could not extract VBA macros (PermissionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
Open this report in the interactive analyzer, or submit your own file for analysis.