Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6f09e12af88b8c2a…

MALICIOUS

Office (OLE) / .DOCX

238.5 KB Created: 2020-10-28 10:47:00 Authoring application: Microsoft Office Word
MD5: 1f0e4173688e015b051836d0ecd3f59b SHA-1: c7f3adc330193fb9ecff7d5d00d80c1a39f4d293 SHA-256: 6f09e12af88b8c2ae45c021409c707ca0afc0b65be38c119d8a7ecaa72355ac7
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 to execute code. ClamAV detection confirms it as malware, specifically identifying it as Emotet. The VBA macro is obfuscated but appears to be designed to download and execute a second-stage payload, a common Emotet behavior. The presence of the Document_Open macro and the CreateObject call strongly suggest malicious intent.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
46faaf06a16ada9e49d018565258705c67fc1202bb8b7fa1b6772e3ca9589e8c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17107 bytes

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