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

Static analysis result for SHA-256 c39d6906f74f776d…

MALICIOUS

Office (OLE) / .DOC

1.04 MB Created: 2008-01-24 07:45:00 Authoring application: Microsoft Office Word
MD5: bcc85966772d85ed26dd98309a00c94f SHA-1: d00545bfde64194293fcde127ac7652fd44d61f5 SHA-256: c39d6906f74f776dd8955d4e6b67ebc94dbbea3778618167fe36ba717ea0071d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The file is a malicious OLE document with a large appended payload, indicating it likely contains and executes a secondary stage. The document body displays "Bill Gates", suggesting a social engineering lure. No VBA macros were extractable, and the embedded URLs are confirmed benign. The appended payload's nature and execution method are not discernible from the available evidence.

Heuristics 4

  • OLE document has large unaccounted-for region high OLE_SLACK_ANOMALY
    OLE file is 1,094,099 bytes but its declared streams total only 20,639 bytes — 1,073,460 bytes (98%) 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).
  • OLE file has appended executable-looking payload bytes high OLE_APPENDED_PAYLOAD
    OLE compound file contains a large high-entropy region beyond the declared major streams and that region includes shellcode, PE, or loader API markers. This is a payload-carrier signal, not a specific CVE attribution by itself.
  • Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED
    olevba could not extract VBA macros (PermissionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
  • 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://ns.adobe.com/iX/1.0/
    • http://ns.adobe.com/xap/1.0/mm/

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