Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0a18fed225d22e39…

MALICIOUS

Office (OLE) / .DOCX

149.5 KB Created: 2020-09-18 17:14:00 Authoring application: Microsoft Office Word
MD5: c915ac553236e62332bcf6b6c5d4a194 SHA-1: c8aeda4a2d80922afd2673273f827f3d9d740bae SHA-256: 0a18fed225d22e39aff79199651d91a2206b781439ad8017da76ce668ec88095
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 sample is a Microsoft Word document with a high-confidence detection for VBA macros, specifically a Document_Open macro that uses CreateObject. ClamAV identifies it as 'Doc.Downloader.Emotet-9763589-0', strongly suggesting Emotet family. The VBA macro code, though obfuscated, indicates it's designed to execute automatically and likely download further malicious content, aligning with Emotet's typical downloader behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9763589-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763589-0
  • 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
96b83a59c729d4e2629caf4138babfc6cae62a32b23cb8c4d357b221daf4ba67		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20042 bytes

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