Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6e28c0d7498c729b…

MALICIOUS

Office (OLE) / .DOCX

130.2 KB Created: 2020-10-14 12:13:00 Authoring application: Microsoft Office Word
MD5: 6e34030a025e520aa3744638e83a3ab5 SHA-1: a1181b7519eec71ee638cd8b4f46d0c0bbb9d30b SHA-256: 6e28c0d7498c729b4071b7f88dd9b905b23d6182257de4596b270859bfe15229
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. ClamAV detection confirms it as Doc.Downloader.Emotet-9778018-0. The VBA script is heavily obfuscated but its structure and the presence of a Document_Open auto-execution macro strongly suggest it acts as a downloader for a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778018-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778018-0
  • 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
9ff2f6164d63cd97fef8963d2b7a6ca348ed28032df5d8d3d018a1f3d500bd9b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9476 bytes

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