Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 81ff31f096bddd2f…

MALICIOUS

Office (OLE) / .DOC

161.0 KB Created: 2020-09-15 23:02:00 Authoring application: Microsoft Office Word
MD5: cf8326ab2b4c8fbb781a95ec3b7a694a SHA-1: 4e875e7fd5d5c66630f7adf7b3136d370f30086b SHA-256: 81ff31f096bddd2ff26d45e40e9ca26907b866d9b1c05c7504027649c31711b9
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. ClamAV detection as 'Doc.Downloader.Emotet-9762287-0' strongly suggests the Emotet family. The macro's obfuscated nature and the presence of a downloader heuristic point to it fetching and executing a secondary payload, likely for further system compromise.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762287-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762287-0
  • 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
2463ca5944a3498304fe918280f5b6583e6e8da36e1a3b40714097a3ead5b81e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25024 bytes

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