MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1027 Obfuscated Files or Information
The sample exhibits a critical heuristic for XOR-encoded strings, indicating obfuscation techniques are in use. Additionally, a high heuristic for OLE slack anomaly suggests the file structure is intentionally manipulated. These factors point towards a malicious document designed to hide its true functionality, likely involving the execution of a secondary payload.
Heuristics 2
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XOR-encoded strings (key 0x5D) critical SC_XOR_ENCODEDFound 1 Windows library/API name(s) XOR-encoded with single-byte key 0x5D: 'LoadLibraryA'
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 140,572 bytes but its declared streams total only 16,486 bytes — 124,086 bytes (88%) 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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