Qbot — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 81ef79eca8d6b36f…

MALICIOUS

Office (OOXML) / .XLSX

23.6 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 341e2b39256985ee5daaf8a646bd0b8e SHA-1: 0226f4f1d5f43a58a017bf120d189e1f8733043b SHA-256: 81ef79eca8d6b36fcc541821be8c411edb61b37f5481846e2d9177d1b822b033
60 Risk Score

Malware Insights

Qbot · confidence 95%

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1105 Ingress Tool Transfer

The file is identified by ClamAV as 'Xls.Dropper.QbotDocu12020-9818439-0', strongly indicating it's a Qbot variant designed to drop a secondary payload. The presence of macro-related heuristics suggests the initial execution vector involves enabling macros within the Excel file, which then likely proceeds to download and execute the actual malware.

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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