Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 84163a483557d206…

MALICIOUS

Office (OLE) / .DOCX

177.5 KB Created: 2020-10-20 20:18:00 Authoring application: Microsoft Office Word
MD5: 7ca190b1c900a762cbf862bf16b42757 SHA-1: 5f4aa130b9427595e71bb225ee43c2793039ed52 SHA-256: 84163a483557d206843913f622d2da3f15392e74ee55e35d61961d07a1dd68af
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 that utilizes CreateObject, indicating malicious intent. The ClamAV detection explicitly names this as Emotet. The VBA script is heavily obfuscated, but the presence of auto-execution macros and the CreateObject call strongly suggest it's designed to download and execute a second-stage payload. The embedded URL, though benign, is a common indicator in such documents.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9781039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9781039-0
  • 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
3a0ea03d0cd0ea456810f4542b81cbd362ee0487bda83ef13f410b115b67e727		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18739 bytes

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