Office (OLE) / .DOC malware analysis — malicious · f391ec33a85fa667

MALICIOUS

Office (OLE) / .DOC

64.7 KB Created: 2006-01-25 08:30:00 Authoring application: Microsoft Office Word

MD5: bc2fd49577bcb8e4d0338c5b66f85ae9 SHA-1: dd8c2f987a71b56922699af09fb13eadb953993c SHA-256: f391ec33a85fa667ce7beb537f5721c1b9cfe774953101c14c88c4f2ecfaf26b

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell

The sample is a malicious OLE document that contains a large slack space anomaly. A high-severity heuristic firing indicates a reference to the CreateProcess API, suggesting the document attempts to launch an external process. The document body is filled with unreadable characters, providing no contextual clues. No scripts were extracted from this sample.

Heuristics 2

Reference to CreateProcess API high SC_STR_CREATEPROCESS

Reference to CreateProcess API
OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY

OLE file is 66,208 bytes but its declared streams total only 21,151 bytes — 45,057 bytes (68%) 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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