Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 3a6c9ae28c8e637d…

MALICIOUS

Office (OLE) / .DOC

318.1 KB Created: 2007-12-03 01:19:00 Authoring application: Microsoft Word 9.0
MD5: f6c4df8c8b842042d448ec90d250203d SHA-1: 686275471333afb3413c978b1f77eceafcea71fd SHA-256: 3a6c9ae28c8e637d48e7537269ff223888c91bc53dbe76879df9b6f8b7956b0e
100 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The sample is a Microsoft Word document exhibiting a high degree of slack space, indicative of potential obfuscation or embedded malicious content. A critical heuristic firing indicates XOR-encoded strings with a key of 0x95, suggesting an attempt to hide malicious code or commands. While no specific document body content or scripts were clearly extracted for analysis, the combination of the file type, the slack space anomaly, and the XOR encoding strongly suggests an exploit attempt within the document itself.

Heuristics 3

  • XOR-encoded strings (key 0x95) critical SC_XOR_ENCODED
    Found 2 Windows library/API name(s) XOR-encoded with single-byte key 0x95: 'LoadLibraryA', 'GetProcAddress'
  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 325,752 bytes but its declared streams total only 16,486 bytes — 309,266 bytes (95%) 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).
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/tiff/1.0/
    • http://ns.adobe.com/exif/1.0/
    • http://ns.adobe.com/photoshop/1.0/
    • http://www.iec.ch

Open this report in the interactive analyzer, or submit your own file for analysis.