Qbot — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 8553a39865bdfd71…

MALICIOUS

Office (OOXML) / .XLSX

29.5 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: d4d6fe2e658818175897c76ea25a3842 SHA-1: 87bae11eea57e47e85e400768df405de2ecf5782 SHA-256: 8553a39865bdfd71560d06473f95f7309979b69c4901f7cceaf7304d1eaa3e8d
60 Risk Score

Malware Insights

Qbot · confidence 95%

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious File

The file is identified by ClamAV as Xls.Dropper.Qbot, strongly indicating it's a Qbot variant designed to deliver a secondary payload. The detection name suggests it functions as a dropper, likely exploiting user interaction with the Excel file to execute malicious code. The primary attack pattern involves luring the user into opening a malicious attachment, which then initiates the malware download and execution process.

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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