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

Static analysis result for SHA-256 2a155f17e4d5cea4…

MALICIOUS

Office (OOXML)

251.1 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300
MD5: 1cf211c78f33dd18f5c0f3961570b630 SHA-1: ca31563581bdb20048d6b7b5abd7f53fb26ce78f SHA-256: 2a155f17e4d5cea40e15e02212c74becd106671807cbdfca7ad0b715361cf03f
98 Risk Score

Malware Insights

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

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as a malicious Excel document by ClamAV, specifically 'Xls.Downloader.Agent08210-9888570-0'. It contains an embedded hyperlink that, combined with the 'Fake invoice / payment lure' heuristic, suggests the document's purpose is to trick the user into clicking the link to download a secondary payload. No VBA macros were explicitly extracted, but the ClamAV detection implies macro-based execution.

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: https://my.sitejet.io/goto/1983799/74d65f3f4637f7ebd9c6f7518e17b83472e7b4a830b394347882a594e53e0809/my_website_presentation
  • 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 https://my.sitejet.io/goto/1983799/74d65f3f4637f7ebd9c6f7518e17b83472e7b4a830b394347882a594e53e0809/my_website_presentation

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