Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 34172fac16f26b4c…

MALICIOUS

Office (OLE) / .DOC

143.8 KB Created: 2020-09-25 19:15:00 Authoring application: Microsoft Office Word
MD5: 9862ba5c2ad2d427692ebd9ed1de9d17 SHA-1: bc0f35e100f6158ec1efc9e22da1da252dcd0952 SHA-256: 34172fac16f26b4cfbc1a01621467e5d3eabd46919978c3afb3209950d172105
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, which is a common technique for Emotet. The critical ClamAV detection explicitly names 'Doc.Downloader.Emotet-9768415-1', strongly indicating Emotet family. The macro's use of CreateObject and obfuscated string manipulation suggests it's designed to download and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9768415-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768415-1
  • 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
f7aec5ed0700c38686fed103b8e955ba1df17f289b657d0b562d676e1e8a24d1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16307 bytes

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