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

Static analysis result for SHA-256 f4a99d251c17a95d…

MALICIOUS

Office (OOXML)

250.8 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300
MD5: 6f5b1ae70eac47e3eb453395f0482cef SHA-1: 49fa0feeb273edca30246194c03ceabdb76eeb5e SHA-256: f4a99d251c17a95d7baf5123ff84c80d364403cb8750330770d0d6be9a3cd4b1
98 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. It contains an external hyperlink and uses an invoice lure, suggesting it's designed to trick users into clicking the link. The linked URL likely serves as a download source for a secondary malicious 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: https://app.mockplus.com/run/rp/WusIgnSnbAKu/YjWrQ1995fgy?ps=0&ha=0&la=0&fc=0&out=0
  • 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://app.mockplus.com/run/rp/WusIgnSnbAKu/YjWrQ1995fgy?ps=0&ha=0&la=0&fc=0&out=0

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