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

Static analysis result for SHA-256 880a716c8e9eaf28…

MALICIOUS

Office (OOXML) / .XLSX

21.4 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 9d1e19099d0fc1fb20846158617064e6 SHA-1: 4a20bbb6b09040522e6b906c289f70792f2f7909 SHA-256: 880a716c8e9eaf28d41ed47060874ee3b1986f7b112b299f1d47a82dbc7db6dc
60 Risk Score

Malware Insights

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

The file is identified by ClamAV as a known dropper for malicious payloads. While no specific VBA or script content was extracted, the heuristic strongly suggests the Excel file's primary purpose is to download and execute a secondary stage malware. The file's metadata indicates it is an older Excel format, potentially used for legacy compatibility or to evade newer detection mechanisms.

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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