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

Static analysis result for SHA-256 b991c78190bf8df9…

MALICIOUS

Office (OOXML) / .XLSX

21.4 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 42295fb1f17dab896f0d47ba07ded143 SHA-1: 180932e79d64c6e265b857cf7fd885ae60858a66 SHA-256: b991c78190bf8df90517f36bf72d1833d6454050e0dbecbdc1207a42b3fe9af5
60 Risk Score

Malware Insights

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

The file is identified by ClamAV as a known dropper, specifically 'Xls.Dropper.QbotDocu12020-9818439-0'. This indicates its primary function is to download and execute a secondary malicious payload. The presence of macro-related heuristics further supports its role as a macro-based downloader, likely leveraging VBA to achieve its objective.

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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