Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 b82d2c45864012c7…

MALICIOUS

Office (OLE)

127.6 KB Created: 2018-10-03 10:13:00 Authoring application: Microsoft Office Word First seen: 2018-10-13
MD5: c9e2253db0068d8f9e9e36111532c5e7 SHA-1: 0c7d5de00552ce4a396c476e0519b576d80ce3d8 SHA-256: b82d2c45864012c7d08756c906fbf0891dbf6353f9a53e8643a684721ab9d412
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV and contains a marker for a legacy WordBasic auto-exec macro (AutoOpen). Although VBA extraction failed, the presence of the AutoOpen marker strongly suggests an attempt to run malicious code when the document is opened. The document body content is not indicative of a specific lure.

Heuristics 4

  • ClamAV: Doc.Malware.00536d-6705831-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.00536d-6705831-0
  • Legacy WordBasic auto-exec macro marker medium OLE_LEGACY_WORDBASIC_AUTOEXEC
    OLE Word document contains a legacy WordBasic auto-execution marker such as AutoOpen, but no modern VBA project was recovered and no stronger macro-virus family marker was present. This is analyst-facing evidence for old Word macro execution surface, not a downloader or parser-CVE attribution by itself.
  • Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED
    olevba could not extract VBA macros (AssertionError); 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://schemas.openxmlformats.org/drawingml/2006/main In document text (OLE body)

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