Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 137018574cc7d3fd…

MALICIOUS

Office (OLE) / .DOC

99.2 KB Created: 2020-09-29 13:08:00 Authoring application: Microsoft Office Word
MD5: 53849a2094f6ef43044afcef9e5cc970 SHA-1: 064637dc13e987c079ea60409156cfdf3398c721 SHA-256: 137018574cc7d3fdc312df19c402171c5b5881badcef0a8d34d12b4fe4cb6802
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 triggering a Document_Open macro that uses CreateObject to execute code. ClamAV detection explicitly identifies it as Emotet. The VBA macro is heavily obfuscated but its execution of CreateObject and the presence of the Document_Open auto-execution routine strongly suggest it's designed to download and run a secondary payload, a common Emotet tactic.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769269-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769269-0
  • 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
0c8e6e94f3f41bdd96c12e9822bab3b85568d40319c32b47f377d20be6d22e68		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10250 bytes

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