Office (OLE) malware analysis — malicious · fe0b335f1988b783

MALICIOUS

Office (OLE)

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

MD5: 181771c384aa34d1312c60a90c466b93 SHA-1: 4c6b29a0f1a4980f2e75daad097f152e007e106e SHA-256: fe0b335f1988b783d7aa1a17f1c2467e607b4278166714eddd12209c54d1fef7

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059.003 Windows Command Shell

The sample is an OLE document with a high slack space anomaly, indicating potential obfuscation or embedded malicious content. A heuristic firing for CreateProcess API suggests the document attempts to launch an external process. No document body or script content was available for further analysis, limiting the ability to determine the exact payload or family. The confidence is reduced due to the lack of script details.

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 57,504 bytes but its declared streams total only 21,151 bytes — 36,353 bytes (63%) 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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