Xls.Downloader.Agent08210-9888570-0 Office (OOXML) malware analysis — malicious · a8075b11bb4399cf

MALICIOUS

Office (OOXML)

247.3 KB Created: 2020-12-08 15:40:16 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2021-07-07

MD5: 9976b17247d50dbab41ba98325558d79 SHA-1: 45455767a34a1e54af4046fd36374771424ddd8b SHA-256: a8075b11bb4399cf6c7d5bb4ab5513c479c6cea5609427c7e924c2b9ed5bb206

90 Risk Score

Malware Insights

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

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The critical ClamAV heuristic identifies the file as 'Xls.Downloader.Agent08210-9888570-0', indicating a downloader functionality. The OOXML_CLICKABLE_IMAGE_FORM_LURE heuristic confirms the presence of a phishing lure using a clickable image, directing the user to the external URL. This URL is likely used to download a secondary payload, consistent with a downloader's behavior.

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://8734343.mfs.gg/QUWX9aU
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 Document hyperlink

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