Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 966ad6c5752aaacd…

MALICIOUS

Office (OLE)

134.5 KB First seen: 2019-11-20
MD5: fbef55d7cac673af80be946965bdd234 SHA-1: 29b8c0837fe7aeb66b33c357f9cd94a04322ede6 SHA-256: 966ad6c5752aaacdbd8f1eb6695a5d1f25f84b3e9d61983e6b8309c54b11e077
84 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Doc.Malware.Emodldr-10025032-0. A legacy WordBasic auto-exec macro marker (AutoOpen) was detected, indicating an attempt to leverage older macro execution capabilities. However, standard VBA extraction failed due to an unsupported format, suggesting potential obfuscation or legacy structure.

Heuristics 4

  • ClamAV: Doc.Malware.Emodldr-10025032-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emodldr-10025032-0
  • 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 (IndexError); 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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