MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1204.002 Malicious File
T1059.001 PowerShell
The sample is a malicious Microsoft Word document. Static analysis revealed XOR-encoded strings and a significant amount of slack space within the OLE structure, indicating potential obfuscation or embedded malicious content. The document body is heavily corrupted, preventing a clear understanding of its lure, but the heuristics strongly suggest an exploit attempt. No scripts were extracted, limiting further analysis of the execution chain.
Heuristics 2
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XOR-encoded strings (key 0xFC) critical SC_XOR_ENCODEDFound 8 Windows library/API name(s) XOR-encoded with single-byte key 0xFC: 'KERNEL32.DLL', 'LoadLibraryA', 'GetProcAddress', 'VirtualAlloc', 'CreateProcessA', 'InternetOpenA', 'InternetOpenUrlA', 'HttpOpenRequestA'
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 93,960 bytes but its declared streams total only 16,486 bytes — 77,474 bytes (82%) 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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