Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5e255117ee961334…

MALICIOUS

Office (OLE) / .DOCX

175.2 KB Created: 2020-10-02 15:03:00 Authoring application: Microsoft Office Word
MD5: 6aa30f647db1fbfd676e81145f783835 SHA-1: 1fa5c4ed9dd974071841ce2222d10fda336be0ab SHA-256: 5e255117ee9613347b9071708feb2d77a953447f5c4db8cd998a1a4d3e7ead57
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is identified as malicious by ClamAV with a signature indicating it's an Emotet downloader. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject, a common technique for executing malicious code. The VBA script is heavily obfuscated but its structure and the presence of the Document_Open subroutine strongly suggest it's designed to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
9c73b282cef1909acf6926cc6a46e0c4c3197855b1b22198afbc8de664dfe7ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10626 bytes

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