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

Static analysis result for SHA-256 9915285ce21f6f12…

MALICIOUS

Office (OLE) / .XLS

36.0 KB Created: 2010-08-08 01:41:18 Authoring application: Microsoft Excel
MD5: dedbdc34dd2be6d6cdba9c16f467ef91 SHA-1: 66ff3685776ba8190a2f31080014e448ef9d4396 SHA-256: 9915285ce21f6f12663d232645e43fb647b3cae5989f3437e470d63406ffe3f7
120 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications

The file is an Excel spreadsheet containing VBA macros, specifically an Auto_Open macro, which is a common technique for malicious macro execution. The document body presents a price list for mobile phones, acting as a lure to trick the user into enabling macros. The ClamAV detection 'Doc.Macro.Laroux-5893719-0' further confirms its malicious nature. The primary intent appears to be the execution of the embedded macro, likely to download and execute a second-stage payload.

Heuristics 3

  • ClamAV: Doc.Macro.Laroux-5893719-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Macro.Laroux-5893719-0
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • 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
e9801bef61dd481a32b4da851c61331e9e6c79fb13eeeca6f8304240cb334267		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1567 bytes

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