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

Static analysis result for SHA-256 be6c5aa362929dd9…

MALICIOUS

Office (OOXML)

251.0 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300
MD5: 5a4fb6d8e946c87edc66c61f705571bf SHA-1: 21ed906c57a73b1bed7e56ac0e4b872bd9e37cc4 SHA-256: be6c5aa362929dd9bfd55e9b6272a7e6b7dac940dc315b0b76f9ddee609c1817
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 disguised as an invoice, which is a common lure for phishing attacks. The presence of an external relationship and embedded URL suggests the document is designed to redirect the user to a malicious site, likely to download a secondary payload. No scripts were extracted from this sample.

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: 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://8734343.mfs.gg/QUWX9aU
  • 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://8734343.mfs.gg/QUWX9aU