Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 797ac0be9b6e1c91…

MALICIOUS

Office (OLE) / .DOCX

131.3 KB Created: 2020-09-29 22:12:00 Authoring application: Microsoft Office Word
MD5: c0fbf5385a320beb88b68a9d41abe1b3 SHA-1: e1f3b3e4eaacc831c2a13d28c3414f2cbf7d2c14 SHA-256: 797ac0be9b6e1c912dab41fdf6c487642e027c1a24c2a6510ee3a1a326ef7bb0
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 file contains a high-severity 'Document_Open' macro that uses 'CreateObject', indicating malicious intent. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9769437-0'. The VBA script is heavily obfuscated but the presence of auto-execution and object creation points to a downloader functionality, likely for a second-stage Emotet payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769437-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769437-0
  • 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
46ea4f5c4c1cab321c0ffaa5340d45e7ba78bb5fcec47c12e0336c19b81c43df		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10333 bytes

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