Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 832a1259de6db46a…

MALICIOUS

Office (OLE) / .DOC

162.1 KB Created: 2020-09-18 04:35:00 Authoring application: Microsoft Office Word
MD5: fe629e3314debaa83bf1f0eb6444d4ef SHA-1: 6560a7c68c286e03532f7cd41b5ab0523fcc6d6f SHA-256: 832a1259de6db46aaf784285471cef08438e1de115019f42254a382f9d268c04
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is a Microsoft Word document containing a VBA macro that is automatically executed via the Document_Open subroutine. Heuristics indicate the use of CreateObject and p-code execution, strongly suggesting malicious intent. The ClamAV detection explicitly names Emotet, a known malware family that frequently uses this technique. The VBA script appears to be obfuscated but its structure and the presence of Document_Open point towards a downloader or droppper functionality.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9763318-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9763318-0
  • 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
b0a943f27b229afc0d61565177642c9be098ce97924ee703fbff1ec25a707666
vba-macro oletools.olevba.extract_macros (decoded VBA source) 21996 bytes