Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 61d12a7df062c201…

MALICIOUS

Office (OLE) / .DOC

251.4 KB Created: 2020-09-17 19:06:00 Authoring application: Microsoft Office Word
MD5: 170d3586c8f4394b89e5bb6865ffb17a SHA-1: e8c82c8bf79312528bef5006824347fca7d4604a SHA-256: 61d12a7df062c201b5bcd55a6a873064ab65df1eef00f4b71c5304ba86044673
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 that uses CreateObject, indicative of a downloader. The ClamAV signature 'Doc.Downloader.EmotetRed02226-9938639-0' strongly suggests the Emotet family. The VBA script appears to be heavily obfuscated but its structure and the presence of the Document_Open event point towards downloading and executing a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02226-9938639-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02226-9938639-0
  • 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
f3e5512d27b8b9bc41f3042e7c20b3a4762b4069585ccb21c6a950e8fd05377a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21986 bytes

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