Xls.Downloader.Agent08210-9888570-0 — Office (OOXML) malware analysis

Static analysis result for SHA-256 5049918d10ddca45…

MALICIOUS

Office (OOXML)

247.4 KB Created: 2020-12-08 15:40:16 UTC Authoring application: Microsoft Excel 16.0300
MD5: 3ec7f8e55645fd457c0b17016aebfd3e SHA-1: 25a55cdea1f5e5c220053480921f647e3c70414d SHA-256: 5049918d10ddca45f52ab756a5e3e8d2bb58deaf76e5d39acac833cf59d4b371
130 Risk Score

Malware Insights

Xls.Downloader.Agent08210-9888570-0 · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature Xls.Downloader.Agent08210-9888570-0. Static analysis revealed a clickable image designed as a lure, directing users to a Google Forms URL. This suggests a phishing attack vector where the document is likely delivered as a spearphishing attachment.

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: https://docs.google.com/forms/d/e/1FAIpQLSfhcKenAi7aFm8hqp0BCHKCajajNa93HHJ7LhIntGBSWl0DMw/viewform?usp=sf_link
  • 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://docs.google.com/forms/d/e/1FAIpQLSfhcKenAi7aFm8hqp0BCHKCajajNa93HHJ7LhIntGBSWl0DMw/viewform?usp=sf_link