Qbot — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 99b505173e162c6b…

MALICIOUS

Office (OOXML) / .XLSX

23.6 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 59e7f9e42893b9ef0781ac3e7778eba9 SHA-1: ad7e3a93328ba6d38ae1462f574f6054867d1ebf SHA-256: 99b505173e162c6bf20be43be9dc7750b79e30b2a11194ad0b28e14894901729
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 a Qbot family infection. The heuristic firing suggests this is a dropper document, likely relying on macro execution to download and execute a secondary payload. The attack pattern involves social engineering to trick the user into enabling macros, which is a common initial access vector for Qbot.

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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