Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 a58d958428169897…

MALICIOUS

Office (OLE)

131.6 KB Created: 2018-10-03 15:07:00 Authoring application: Microsoft Office Word First seen: 2019-05-10
MD5: 19dfe0274bf8d95bfa7a6260e633f376 SHA-1: c05b91e35890a72ac837b3194840070f2b69cb8e SHA-256: a58d958428169897000b841fe7c9bb49c8c1f746fe22802d4ca02b9595c8e3e5
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Julm-6794628-0. A legacy WordBasic auto-exec macro marker (AutoOpen) was detected, indicating an attempt to execute code upon opening. However, the VBA macros could not be extracted due to an unsupported format, limiting further analysis of the script's specific actions.

Heuristics 4

  • ClamAV: Doc.Downloader.Julm-6794628-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Julm-6794628-0
  • 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
    The Analyzer could not extract VBA macros: the document may be legacy, encrypted or malformed.
  • 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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