Qbot — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 31bbd857b91a40f4…

MALICIOUS

Office (OOXML) / .XLSX

29.5 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: ce50c6b9e44713fe06f961006504113e SHA-1: 3b6053f70c8b50848d3e5b94342a165d74f044d2 SHA-256: 31bbd857b91a40f4702afba836c4ca50bd2bdb525c1c45e7c465d199dc6e6e7d
60 Risk Score

Malware Insights

Qbot · confidence 95%

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

The file is identified by ClamAV as 'Xls.Dropper.QbotDocu12020-9818439-0', strongly indicating it is a Qbot dropper. This type of document typically uses macros to download and execute a secondary payload, aiming to infect the user's system with Qbot malware. The presence of this specific ClamAV signature provides high confidence in the Qbot family attribution and its dropper functionality.

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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