Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 1b9e0a064f212e05…

MALICIOUS

Office (OOXML)

249.2 KB Created: 2019-04-25 17:12:09 UTC Authoring application: Microsoft Excel 16.0300
MD5: 1cc51d61dfd93476f4c3c0ad29e6dc47 SHA-1: 377a14e0df201e89abaecd03731e2d3af841951d SHA-256: 1b9e0a064f212e05a559477da6c7ee3170de76cce7687c7a2c2056b99b398cca
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is an Excel document containing a clickable image designed as a phishing lure, directing users to a Typeform URL. The presence of the 'OOXML_CLICKABLE_IMAGE_FORM_LURE' heuristic and the embedded URL strongly suggest a phishing or credential harvesting attempt. Although no scripts were extracted, the overall structure and heuristic firings indicate a malicious intent, likely related to social engineering.

Heuristics 4

  • 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.
  • ClamAV: Xls.Downloader.Agent08210-9888570-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Agent08210-9888570-0
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: http://i2iwj6wm3lo.typeform.com/to/OQMsiKu8
  • 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://i2iwj6wm3lo.typeform.com/to/OQMsiKu8

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