Malicious Office (OOXML) / .XLSX — malware analysis report

Static analysis result for SHA-256 99a09bb451ea4786…

MALICIOUS

Office (OOXML) / .XLSX

21.4 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: f2f9fec62f1ca08afefe01770741c67c SHA-1: b14005914b0ffb83bc4299d0d2b074ca409e67b8 SHA-256: 99a09bb451ea478676a39d1fb0bf2c9d16a02ff688d03af5fccaecc3523e51ec
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment

The file is identified by ClamAV as a known dropper for Qbot malware. While no document body or scripts were extracted, the heuristic detection strongly suggests the file's purpose is to download and execute a malicious payload. The file type and heuristic are consistent with a macro-enabled document used for initial infection.

Heuristics 1

  • ClamAV: Xls.Dropper.QbotDocu12020-9818439-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Dropper.QbotDocu12020-9818439-0