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

Static analysis result for SHA-256 b5ffbfdfc9f118f9…

MALICIOUS

Office (OOXML)

247.4 KB Created: 2011-08-29 12:03:33 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2021-08-20
MD5: 260d4e1b16589184e312366ce8831fd6 SHA-1: f83d1cc36ba0048962cb7945402f79f88b61b87a SHA-256: b5ffbfdfc9f118f92e14addd1fb5d144d444b8074527ebc435f5fb8ac738a819
70 Risk Score

Malware Insights

Xls.Downloader.Agent08210-9888570-0 · confidence 90%

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Xls.Downloader.Agent08210-9888570-0, indicating it is a downloader. Static analysis revealed an external hyperlink within the document body, which is a common lure for users to download malicious payloads. The hyperlink points to http://www.formtools.com/f/httpswwwofficecomauth2-1611, likely serving as the initial stage for malware delivery.

Heuristics 3

  • 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://www.formtools.com/f/httpswwwofficecomauth2-1611
  • 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://www.formtools.com/f/httpswwwofficecomauth2-1611 Document hyperlink

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