Malicious Office (OOXML) / .XLSX — malware analysis report

Static analysis result for SHA-256 c671ade49d33c7e1…

MALICIOUS

Office (OOXML) / .XLSX

21.4 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 9809569477ccc3bb9bfc98d99cfe7653 SHA-1: b98683985b0dd2f31293288b5b9812f357f3808c SHA-256: c671ade49d33c7e10685421628a8cfa45ea8ee48577a1dc94ec1742ac541b781
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The file is identified by ClamAV as 'Xls.Dropper.QbotDocu12020-9818439-0', indicating it functions as a dropper for other malware. While no specific VBA or script content was extracted, the detection signature strongly suggests a malicious intent to download and execute a second-stage payload. The file's metadata indicates it is an older Excel document, potentially leveraging older vulnerabilities or social engineering tactics.

Heuristics 1

  • ClamAV: Xls.Dropper.QbotDocu12020-9818439-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Dropper.QbotDocu12020-9818439-0

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