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

Static analysis result for SHA-256 4891ea787f26e060…

MALICIOUS

Office (OOXML) / .XLSX

21.4 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: 35bfe05ae10460c907310abd3753928b SHA-1: 998901b0990c4bf3f56fae3c5ebbd4581fc5aa16 SHA-256: 4891ea787f26e0603318c150cde4efcb4bfad5c2c895b5440576d5327848751b
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The file is an Excel spreadsheet identified by ClamAV as 'Xls.Dropper.QbotDocu12020-9818439-0', indicating it functions as a dropper. The primary attack pattern involves tricking the user into enabling macros, which is a common initial access vector. While no specific script content or URLs were extracted, the heuristic strongly suggests the file's purpose is to download and execute a secondary stage payload.

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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