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

Static analysis result for SHA-256 ac178d96b23f84e3…

MALICIOUS

Office (OOXML)

247.3 KB Created: 2020-12-08 15:40:16 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2021-07-02
MD5: 5c93ad14aecb849ec8ad191a6094df3c SHA-1: f7b5cf45c7e6b606f6f1a650080fcc991ffbf800 SHA-256: ac178d96b23f84e3057c011e0ecf6a48947deacd373788e71297ffa9219ff710
90 Risk Score

Malware Insights

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

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The critical ClamAV heuristic identifies the file as 'Xls.Downloader.Agent08210-9888570-0', indicating a downloader. The OOXML_CLICKABLE_IMAGE_FORM_LURE heuristic confirms the use of a phishing lure with a hyperlink. This hyperlink likely serves to download a secondary payload, as suggested by the downloader family.

Heuristics 4

  • ClamAV: Xls.Downloader.Agent08210-9888570-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Agent08210-9888570-0
  • OOXML clickable image phishing/form lure medium OOXML_CLICKABLE_IMAGE_FORM_LURE
    Workbook uses a large embedded image as the visible document body and attaches a click-through external hyperlink to that image. The target is a form/collection service or the drawing contains download/view lure text, which is a common credential or document-phishing pattern rather than benign workbook data.
  • External hyperlinks (1) low OOXML_EXTERNAL_HYPERLINKS
    Document contains 1 external hyperlink — clickable URLs are stored as external relationships. First target: https://10092113.mfs.gg/ZjzQiVC
  • 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://10092113.mfs.gg/ZjzQiVC Document hyperlink

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