MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1203 Exploitation for Client Execution
The sample is a Microsoft Word document exhibiting an OLE slack anomaly and contains XOR-encoded strings, indicating potential obfuscation of malicious content. The critical heuristic firing suggests the presence of exploit code designed to execute arbitrary commands on the victim's machine.
Heuristics 2
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XOR-encoded strings (key 0x95) critical SC_XOR_ENCODEDFound 8 Windows library/API name(s) XOR-encoded with single-byte key 0x95: 'GetProcAddress', 'VirtualAlloc', 'VirtualAlloc', 'VirtualAllocEx', 'VirtualProtect', 'VirtualProtect', 'VirtualProtectEx', 'CreateProcessA'
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 75,776 bytes but its declared streams total only 16,486 bytes — 59,290 bytes (78%) 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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