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

Static analysis result for SHA-256 e0c48ff7c0d192c6…

MALICIOUS

Office (OOXML)

251.0 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300
MD5: e4b38d0fc3e2c242ed29d0a51a379698 SHA-1: dbcc4e15f3bb15ed81df7cdacaa7cc22ed4322b5 SHA-256: e0c48ff7c0d192c66c21cb6fc87978fc21b7e421aecfb6850cc5b00b3c8d2ceb
98 Risk Score

Malware Insights

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

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is detected as Xls.Downloader.Agent08210-9888570-0 by ClamAV, indicating it functions as a downloader. The presence of an external hyperlink and the 'Fake invoice / payment lure' heuristic strongly suggest the document attempts to trick the user into clicking the link to initiate a malicious download. The document body contains invoice-related text, reinforcing the lure. No scripts were extracted, but the external hyperlink is the primary indicator of a potential second-stage download.

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://yduhfghligfghgugfhfhgbfgfdjdjfd.s3.eu-de.cloud-object-storage.appdomain.cloud/index.html
  • 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://yduhfghligfghgugfhfhgbfgfdjdjfd.s3.eu-de.cloud-object-storage.appdomain.cloud/index.html

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