Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 62369ff5907322b7…

MALICIOUS

Office (OLE) / .DOCX

149.4 KB Created: 2020-09-18 17:14:00 Authoring application: Microsoft Office Word
MD5: 94ed19ecbfeade3ddb381f66e96dc102 SHA-1: a6962bb58363ba5cb9bbc6479b2f5c1792f2bbc7 SHA-256: 62369ff5907322b724aa7887f89b56d02ca2c5e1388236064005e7c9d8451dc0
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9763589-0'. The VBA code appears to be obfuscated, but the presence of the Document_Open auto-execution and the CreateObject call strongly suggest it's designed to download and execute a secondary payload, a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9763589-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763589-0
  • 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
96b83a59c729d4e2629caf4138babfc6cae62a32b23cb8c4d357b221daf4ba67		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20042 bytes

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