Malicious Office (OOXML) / .XLSX — malware analysis report

Static analysis result for SHA-256 fe101fc7a6e1a02a…

MALICIOUS

Office (OOXML) / .XLSX

73.8 KB Created: 2021-03-15 08:21:46 UTC Authoring application: Microsoft Excel 16.0300
MD5: fef7d1def8d4d65cb912f0121d12b721 SHA-1: 35a7e05ee4fb6b4302c0282db1ffca7191a6c248 SHA-256: fe101fc7a6e1a02a0ca015a5d3b4d842f1e61a8a32d8fcfa5918d4c96ea86b51
68 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment

The OOXML_CLICKABLE_IMAGE_FORM_LURE heuristic indicates the presence of a phishing lure using a clickable image in an Excel file. The external hyperlink points to a typeform.com URL, commonly used for phishing campaigns. While the URL itself was marked as benign, the heuristic strongly suggests a malicious intent to trick users into submitting information via the form.

Heuristics 3

  • OOXML clickable image phishing/form lure critical OOXML_CLICKABLE_IMAGE_FORM_LURE
    Workbook uses a large embedded image as the visible document body and attaches a click-through external hyperlink to that image. The target is a form/collection service or the drawing contains download/view lure text, which is a common credential or document-phishing pattern rather than benign workbook data.
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: https://da39st1889d.typeform.com/to/pMNz6YM2
  • 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 https://da39st1889d.typeform.com/to/pMNz6YM2
    • http://schemas.openxmlformats.org/spreadsheetml/2006/main
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac
    • http://schemas.microsoft.com/office/spreadsheetml/2014/revision
    • http://schemas.microsoft.com/office/spreadsheetml/2015/revision2
    • http://schemas.microsoft.com/office/spreadsheetml/2016/revision3

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