MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1027 Obfuscated Files or Information
The sample is an OLE document exhibiting a critical heuristic for XOR-encoded strings with a key of 0x63. Additionally, a high heuristic firing indicates a significant amount of slack space within the OLE structure, a common characteristic of packed or obfuscated malicious documents. While no specific payload delivery mechanism or network indicators were extracted, these findings strongly suggest the document is intentionally obfuscated to conceal malicious content.
Heuristics 2
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XOR-encoded strings (key 0x63) critical SC_XOR_ENCODEDFound 4 Windows library/API name(s) XOR-encoded with single-byte key 0x63: 'LoadLibraryA', 'CreateProcessA', 'ExitProcess ', 'CreateFileA '
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 68,608 bytes but its declared streams total only 20,635 bytes — 47,973 bytes (70%) 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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