Xls.Downloader.TrendMicroDridex0521-9860965-0 — Office (OOXML) malware analysis

Static analysis result for SHA-256 2dcb22645c4680b9…

MALICIOUS

Office (OOXML)

192.6 KB Authoring application: Microsoft Excel 15.0300 First seen: 2021-05-23
MD5: d9fd34c3e47dc6dde1df3e34f6aef764 SHA-1: ba1a5a73b81357775e2ced89fccd18ec58042aaf SHA-256: 2dcb22645c4680b94674caf2579acc496e86ed23a5800a789dc6a85f577ce76a
102 Risk Score

Malware Insights

Xls.Downloader.TrendMicroDridex0521-9860965-0 · confidence 95%

MITRE ATT&CK
T1218.011 System Binary Proxy Execution: Rundll32

The file was detected as Xls.Downloader.TrendMicroDridex0521-9860965-0 by ClamAV. Static analysis revealed the use of Wscript.Shell and rundll32.exe, indicating an attempt to execute a downloaded payload. The document body contains multiple URLs that are likely sources for this payload, suggesting a downloader functionality.

Heuristics 3

  • ClamAV: Xls.Downloader.TrendMicroDridex0521-9860965-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Downloader.TrendMicroDridex0521-9860965-0
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://buyjointsonline.com/wp-content/plugins/wpforms-lite/templates/emails/pM44c3eiAK6.php In macro / runtime command snippet
    • https://lerc.gov.lr/231electricity/editor/tinymce/themes/modern/Z9grXigF03Qy.phpIn document text (OOXML body / shared strings)
    • https://malsign.com/ICkPFoHIaO.phpIn document text (OOXML body / shared strings)
    • https://co-deporte.com/wp-content/plugins/revslider/includes/InstagramScraper/DR34CZJP1juKE.phpIn document text (OOXML body / shared strings)
    • https://ncc-services.com/ncc_hr/js/tinymce/plugins/advlist/Qw3HExfj.phpIn document text (OOXML body / shared strings)
    • https://2nub.es/lib/js/prettyphoto/images/prettyPhoto/DDndV1TI5lvC3M7.phpIn document text (OOXML body / shared strings)
    • https://sezencin.com/ozzzpanel/js/mylibs/forms/uploader/864sv4ph.phpIn document text (OOXML body / shared strings)
    • https://ctfiladelfia.projetosestruturais.com/LR7u0G1zGjUJ.phpIn document text (OOXML body / shared strings)
    • https://ramdevagroindustries.com/images/blog/WZVRzcoUaXZ.phpIn document text (OOXML body / shared strings)

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