Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6d91b91643e3f32d…

MALICIOUS

Office (OLE) / .DOCX

163.8 KB Created: 2020-09-22 18:24:00 Authoring application: Microsoft Office Word
MD5: f64569f51a8be94d51dcfbd792ce1adf SHA-1: 127f840457bf3e6498fbcfa046a2602dccaef1cc SHA-256: 6d91b91643e3f32d2bb96bf9dd0b4d7764f594259898185084557fc57a102d1a
242 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate or Obfuscate Malicious Code

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject and GetObject calls, indicative of malicious activity. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9765458-0', strongly suggesting Emotet family involvement. The macro's structure and the presence of obfuscated code point towards a downloader function designed to fetch and execute further malicious content.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765458-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765458-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
bd654d20c055e0b0e127587789558080b1c423748b3142eb9ab3aa76d6d97f9b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20393 bytes

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