Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 17e8381736145191…

MALICIOUS

Office (OLE) / .DOCX

169.0 KB Created: 2020-10-20 05:21:00 Authoring application: Microsoft Office Word
MD5: 7a17fc753a5f1e033f42c05eaff100bf SHA-1: 2b4133cbe66d5584e7f8558175995b368691cc2a SHA-256: 17e8381736145191863fd7f6fa84e6a14360ef732a74f38c350ad00c1379932a
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 VBA code uses CreateObject to execute obfuscated commands, likely to download and run a secondary payload. ClamAV detection explicitly identifies it as Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9780828-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780828-0
  • 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
4588401bd42bd39b75b9dcc9e4ef6377522769140839001e1d2af1038d6019be
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17619 bytes