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

Static analysis result for SHA-256 827c015d880ed76f…

MALICIOUS

Office (OOXML)

251.1 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300
MD5: e43eb2416f818ca08107044515a81af3 SHA-1: bb0e8e01a82eae4d39ddef024dcccc593952b2b4 SHA-256: 827c015d880ed76f6b8550016191cd328bd6c8fe8c35a52eb355d22774293755
98 Risk Score

Malware Insights

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

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The critical ClamAV detection and the presence of an external hyperlink suggest this Excel file is a downloader. The 'SE_INVOICE_LURE' heuristic indicates the document body is designed to trick the user into clicking the link, which leads to the URL 'https://app.mockplus.com/run/rp/u-dZrix1PS2r/jlvPU-yd3fdX/b9eG_gTv311?ps=0&ha=0&la=0&fc=0&out=1'. This URL is likely used to fetch and execute 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/u-dZrix1PS2r/jlvPU-yd3fdX/b9eG_gTv311?ps=0&ha=0&la=0&fc=0&out=1
  • 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/u-dZrix1PS2r/jlvPU-yd3fdX/b9eG_gTv311?ps=0&ha=0&la=0&fc=0&out=1

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