Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 17a41a9ba41c62e3…

MALICIOUS

Office (OLE) / .DOC

186.0 KB Created: 2020-09-16 22:59:00 Authoring application: Microsoft Office Word
MD5: 1c1c06b58b9fc10d6d9bf4d9a35e69a8 SHA-1: e66a65b15b4f926d4ed93fb9590ce22ef6254025 SHA-256: 17a41a9ba41c62e3915433d44c543fc2358acd9e897f5d3988d198d7589202ba
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Office document containing VBA macros, specifically triggering on the Document_Open event. Heuristics indicate the use of CreateObject, suggesting the execution of arbitrary code. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9762305-0', strongly indicating Emotet family and a downloader functionality. The VBA script, though obfuscated, is designed to execute code, likely to download and run a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9762305-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762305-0
  • 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
c74a4e0e1e8046236a4698925940d43110d502cff010754883e948c4e1efb894		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19088 bytes

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