Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 020aeaa470dfa7a4…

MALICIOUS

Office (OLE) / .DOCX

131.1 KB Created: 2020-09-29 22:12:00 Authoring application: Microsoft Office Word
MD5: d582b2b91bd59c9aafb1d556fddb2f9b SHA-1: 9b0841696c89fb1196562d27f235e0f482ab9a88 SHA-256: 020aeaa470dfa7a4e9fc3e8d88db9d7f89b1bd64df67a963467490068a6f3d6d
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9769437-0. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, suggesting it's designed to execute code upon opening. The obfuscated VBA script likely attempts to download and execute a second-stage payload, a common Emotet behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9769437-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769437-0
  • 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
46ea4f5c4c1cab321c0ffaa5340d45e7ba78bb5fcec47c12e0336c19b81c43df		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10333 bytes

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