Qbot — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 b4421f558d4d074f…

MALICIOUS

Office (OOXML) / .XLSX

23.6 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 83e2c8357f4573c1d67de373a68a3baf SHA-1: d68a87ac57f07d276e2822e3e5f2d425c1b86918 SHA-256: b4421f558d4d074f661544ba47c6c8ef7959b1530bce3b546623b723e368ca2e
60 Risk Score

Malware Insights

Qbot · confidence 85%

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment

Static analysis identified the file as a malicious Excel spreadsheet. The CLAMAV_DETECTION heuristic specifically flags it as 'Xls.Dropper.QbotDocu12020-9818439-0', strongly suggesting it is a Qbot downloader. The file's purpose is to act as a malicious attachment, likely delivered via spearphishing, to initiate the Qbot infection chain.

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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