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

Static analysis result for SHA-256 452428f55ca1d5ec…

MALICIOUS

Office (OOXML)

251.0 KB Created: 2021-06-07 17:47:41 UTC Authoring application: Microsoft Excel 16.0300 First seen: 2021-09-13
MD5: c324d2064267852d64278ead19f18796 SHA-1: ccb27aa125e839eef94fed3c869e038471d166b7 SHA-256: 452428f55ca1d5ec5becc326f492ac99cc3a4d48c4110ece26947e6da223558d
86 Risk Score

Malware Insights

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

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The file is detected as a downloader by ClamAV and contains heuristics indicating it's a fake invoice lure with an external hyperlink. The hyperlink likely leads to the download of a secondary malicious payload, which is a common tactic for initial compromise via spearphishing attachments.

Heuristics 5

  • ClamAV: Xls.Downloader.Agent08210-9888570-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.Agent08210-9888570-0
  • 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
  • External workbook data link low OOXML_EXTERNAL_REL_DATALINK
    External workbook reference in xl/pivotCache/_rels/pivotCacheDefinition1.xml.rels: /Users/goods/Downloads/JMS ENGINEERED PLASTICS INC_SOA_June.xlsx
  • 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 Document hyperlink