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

Static analysis result for SHA-256 b0a285b477c1976d…

MALICIOUS

Office (OOXML)

251.0 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300
MD5: 0ad4c76ebeed7158025b58290c72e130 SHA-1: 3e742128d9efb5fd0895b5050cc4cf838c482013 SHA-256: b0a285b477c1976db5dea300457b8d22fbb4698f9c9d2bc0fd79803182f2918f
98 Risk Score

Malware Insights

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

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is detected as Xls.Downloader.Agent08210-9888570-0 by ClamAV, indicating it is a downloader. The document body contains invoice-like language, and a heuristic identified it as a fake invoice or payment lure. The presence of an external hyperlink to http://www.formtools.com/f/micr0soft0ffice365mail-1540 suggests the document is designed to trick the user into visiting a malicious site, likely to download a secondary payload.

Heuristics 5

  • ClamAV: Xls.Downloader.Agent08210-9888570-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Agent08210-9888570-0
  • External relationship medium OOXML_EXTERNAL_REL
    External target in xl/pivotCache/_rels/pivotCacheDefinition1.xml.rels: /Users/goods/Downloads/JMS ENGINEERED PLASTICS INC_SOA_June.xlsx
  • 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/micr0soft0ffice365mail-1540
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/micr0soft0ffice365mail-1540

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