Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 7a6d5886c20efe90…

MALICIOUS

Office (OLE) / .DOC

161.0 KB Created: 2020-12-30 13:45:00 Authoring application: Microsoft Office Word
MD5: dc747ede5ef6b99da2f11d039511e61b SHA-1: b2773201a088bde1d28bf9d2f60252fc9484b866 SHA-256: 7a6d5886c20efe90861269d2c490e1bc1b0d447e9e72077b0f49e89f5ebb4851
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro uses CreateObject to interact with the file system, attempting to create files in arbitrary locations. This behavior strongly suggests the macro is designed to download and execute a secondary payload, a hallmark of Emotet's downloader functionality.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
33d9a9f2ec9b3a38df928e53a0fbd14ca63ce044037ad7728d36bd9b38953478		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6691 bytes

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