MALICIOUS
100
Risk Score
Malware Insights
MITRE ATT&CK
T1027 Obfuscated Files or Information
The Excel file exhibits suspicious characteristics including XOR-encoded strings and a significant amount of slack space, indicating an attempt to obfuscate its malicious payload. While no specific malicious behavior like network communication or file execution was directly observed in the static analysis, these obfuscation techniques are commonly employed by malware to evade detection. The presence of these indicators warrants further investigation.
Heuristics 2
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XOR-encoded strings (key 0xFC) critical SC_XOR_ENCODEDFound 6 Windows library/API name(s) XOR-encoded with single-byte key 0xFC: 'LoadLibraryA', 'GetProcAddress', 'VirtualProtect', 'CreateProcessA', 'RegOpenKeyExA', 'ShellExecuteA'
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 441,344 bytes but its declared streams total only 15,628 bytes — 425,716 bytes (96%) 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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