Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6a643872b2481769…

MALICIOUS

Office (OLE) / .DOCX

154.9 KB Created: 2020-10-16 06:31:00 Authoring application: Microsoft Office Word
MD5: 052ca716c61db07086f3608f87934a74 SHA-1: a425f706a6c3c632f5faca81ee93416b9d2d76a7 SHA-256: 6a643872b2481769c2b5927a429f7f678557018b9e08015b2be084d104bbad4e
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The file contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject and obfuscated code, indicating an attempt to download and execute a secondary payload. The ClamAV detection explicitly names Emotet, further supporting this classification.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778460-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778460-0
  • 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
d61a5c08d74b05c0be099936f48870810cfcd0fa95621c486c59e0d00fa9de51		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15430 bytes

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