Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 640ce54a96084cd4…

MALICIOUS

Office (OLE) / .DOCX

154.8 KB Created: 2020-10-19 12:20:00 Authoring application: Microsoft Office Word
MD5: a12486a4814db681a2261c38a1280f6a SHA-1: c6befd89df4b5b3a6720d46563e6564485943ddd SHA-256: 640ce54a96084cd401f63a6f747f5e41b5ac884535ba6d523f946368bb040b37
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open auto-execution macro, and uses CreateObject, indicating malicious intent. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9780400-0', strongly suggesting the Emotet family. The VBA script's structure and use of CreateObject are consistent with downloading and executing a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
1b934c7a6a945d183f556fc460816db0116e14a6233b4c84dca18770500f607e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15515 bytes

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