Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 1305f207c94fad8b…

MALICIOUS

Office (OLE) / .DOC

162.3 KB Created: 2020-09-18 04:35:00 Authoring application: Microsoft Office Word
MD5: 0a6c8249b239191fbe1ff2316a9ac6b1 SHA-1: 499ad190a832dad736b3ff53ed42f3a25cea9943 SHA-256: 1305f207c94fad8b6593b79a05672eb66cac25b3ef11d2668fabe2a945ba84af
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Word document containing a VBA macro that is automatically executed via the Document_Open subroutine. The macro is heavily obfuscated but the presence of CreateObject and the ClamAV signature 'Doc.Malware.Emotet-9763318-0' strongly indicate Emotet activity. The macro likely downloads and executes a secondary payload.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9763318-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9763318-0
  • 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
b0a943f27b229afc0d61565177642c9be098ce97924ee703fbff1ec25a707666		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21996 bytes

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