Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 b4d7fa3120e8b68d…

MALICIOUS

Office (OLE) / .XLS

43.5 KB Created: 2020-11-17 08:47:11 Authoring application: Microsoft Excel
MD5: 7aa601d6b356d40ee383ca65632552b5 SHA-1: 07f6748489530cbd71beec66bb5ef45577c0c24a SHA-256: b4d7fa3120e8b68d285c7273cb0a7b54377dc457caf2e31818d186439fb7a8f1
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is an XLS document containing VBA macros, which is a common delivery mechanism for malware. The ClamAV detection and the presence of embedded macros strongly suggest malicious intent. The macros are likely responsible for downloading and executing a second-stage payload, although the exact mechanism is not fully detailed in the provided evidence.

Heuristics 2

  • ClamAV: Xls.Malware.Mrhl-9774585-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Malware.Mrhl-9774585-0
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c0a5c8465c8feec6f3c7d4b7499d02b7cde56012dad366ff01586cdda6a770af		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1300 bytes

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