Office (OLE) / .DOC malware analysis — malicious · e78f863a1ac33e92

MALICIOUS

Office (OLE) / .DOC

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

MD5: 528362dddb95b31789d150b226c40b49 SHA-1: c740f879354fe6e5eaee9d81cfaa5465ad31245e SHA-256: e78f863a1ac33e92907e2bcef2a4d08c95325417d7a184d88eeac4c70131b623

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059 Command and Scripting Interpreter

The sample is a malicious OLE document that contains a large slack space anomaly. A high-severity heuristic indicates the use of the CreateProcess API, suggesting an attempt to launch an external process. The document body is heavily obfuscated and does not provide further 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 65,440 bytes but its declared streams total only 21,151 bytes — 44,289 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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