MALICIOUS
140
Risk Score
Malware Insights
MITRE ATT&CK
T1059.001 PowerShell
T1027 Obfuscated Files or Information
The sample exhibits multiple high and critical heuristic firings, including NOP sleds, XOR-encoded strings, and OLE slack anomalies, strongly indicating malicious intent. The document body contains seemingly random strings and unusual formatting, further suggesting obfuscation. While no specific URLs or scripts were extracted, the combination of heuristics points to a downloader or dropper mechanism designed to execute further stages.
Heuristics 3
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XOR-encoded strings (key 0xC6) critical SC_XOR_ENCODEDFound 8 Windows library/API name(s) XOR-encoded with single-byte key 0xC6: 'kernel32.dll', 'kernel32.dll', 'advapi32.dll', 'wininet.dll', 'shell32.dll', 'KERNEL32.DLL', 'LoadLibraryA', 'LoadLibraryA'
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NOP sled detected high SC_NOP_SLEDFound 20+ consecutive 0x90 bytes
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OLE document has large unaccounted-for region high OLE_SLACK_ANOMALYOLE file is 234,037 bytes but its declared streams total only 129,793 bytes — 104,244 bytes (45%) 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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