Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 12e07b82fad9e73b…

MALICIOUS

Office (OLE) / .DOCX

174.8 KB Created: 2020-10-20 14:16:00 Authoring application: Microsoft Office Word
MD5: f4e2c2a43dc726de2405da557151a213 SHA-1: aa2892db35027d8730d9dd878618aff05e3887e4 SHA-256: 12e07b82fad9e73b029e05af2bf09d2996cc9ffce7e8794880b3a4124018f808
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The critical ClamAV detection also strongly suggests Emotet. The macro's obfuscated nature and use of CreateObject indicate it's designed to execute arbitrary code, likely to download and run a secondary payload. The presence of a Document_Open macro and VBA code points to a spearphishing attachment delivery method.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
417a16a51c05c178612698fd783ed577ce9b3b76b7f937b9782e824861e12aec		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18804 bytes

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