Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5e39f32377e359ac…

MALICIOUS

Office (OLE) / .DOCX

205.6 KB Created: 2020-12-22 12:31:00 Authoring application: Microsoft Office Word
MD5: cb017f0099ebb74a2e73defe0d9c8312 SHA-1: 69049026262f2a55ea9e7725b7c00b7606aedc29 SHA-256: 5e39f32377e359ac7bcc7d7e48b61c00b0338d3c9af540c591e7a847c29aac56
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious DOCX file containing VBA macros, specifically a Document_Open macro that utilizes CreateObject to execute obfuscated code. ClamAV detection identifies it as Emotet, a known downloader family. The macro's primary function appears to be executing arbitrary code, likely to download and run a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
  • 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
b223e36ca03f3aef1de34ece9213428b8c399a8d27f7650232938837efe41a69		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16333 bytes

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