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

Static analysis result for SHA-256 89e22caee48f0b02…

MALICIOUS

Office (OOXML) / .XLSX

246.3 KB Created: 2011-05-17 14:38:26 UTC Authoring application: Microsoft Excel 16.0300
MD5: 3bc2215497a616f8cdbe69e34f160b91 SHA-1: b3ced1f514d9bb95d164003a08308d797ffd5d56 SHA-256: 89e22caee48f0b02055d10d86c1ba4cd1d23e0e77d1a665522fab35d0d2f5683
108 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The critical ClamAV heuristic identified the file as a downloader, and the OOXML_CLICKABLE_IMAGE_FORM_LURE heuristic indicates the presence of a phishing or form lure. The external hyperlink points to a typeform URL, which is often used for collecting user input in phishing schemes. While the URL itself is marked as benign, the combination of heuristics strongly suggests a malicious intent to lure the user into interacting with a potentially harmful external resource.

Heuristics 4

  • ClamAV: Xls.Downloader.Agent08210-9888570-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Agent08210-9888570-0
  • OOXML clickable image phishing/form lure high 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: http://qvjpv989oqf.typeform.com/to/WceUPbTz
  • 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://qvjpv989oqf.typeform.com/to/WceUPbTz
    • 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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