Qbot — Office (OOXML) / .XLSX malware analysis

Static analysis result for SHA-256 d1f1bb971e3b39be…

MALICIOUS

Office (OOXML) / .XLSX

21.4 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 14.0300
MD5: f58f5d341a23982df8c63df77f6d2591 SHA-1: 5821e305fdb79ebedcef3856162a0a6ff4359e04 SHA-256: d1f1bb971e3b39be6b71cf04dec126f46d9e388ac3c5be4db2e73e07cfc1e10c
60 Risk Score

Malware Insights

Qbot · confidence 95%

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

The file is identified by ClamAV as 'Xls.Dropper.QbotDocu12020-9818439-0', strongly suggesting it is a Qbot variant used for dropping secondary payloads. The Excel format and the heuristic firing indicate a likely phishing attack vector, where the document would trick the user into enabling macros to execute the malicious code. The primary IOC is the file's SHA256 hash.

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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