Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 3ce591f2c9cf5312…

MALICIOUS

Office (OLE)

120.6 KB Created: 2018-10-03 19:37:00 Authoring application: Microsoft Office Word First seen: 2019-03-18
MD5: 566db9c69f83e0d9869a3ef942c57bfe SHA-1: fe2d46fc9966043b9a817d85e3e1474042df22e8 SHA-256: 3ce591f2c9cf5312f994744e1600462eb7c872c263d7d42501e5dcb762328fe4
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and contains a legacy WordBasic auto-exec macro marker (AutoOpen). Although VBA macros could not be extracted due to an unsupported format, the presence of the auto-exec marker strongly suggests an attempt to execute malicious code upon opening. The document body contains obfuscated text, further indicating malicious intent.

Heuristics 4

  • ClamAV: Doc.Malware.00536d-6706292-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.00536d-6706292-0
  • 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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