Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 5bb82b9fb5137c7a…

MALICIOUS

Office (OLE) / .DOC

161.0 KB Created: 2020-09-24 14:59:00 Authoring application: Microsoft Office Word
MD5: 871067924d03dcb0becd1231715e1d4e SHA-1: 4c018fd6a64d49affb25c8d7425d633bd4999070 SHA-256: 5bb82b9fb5137c7a26cb2902ea5f18f1b5be6d809333f4d66f155351446ec81d
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is a Microsoft Word document containing VBA macros, specifically triggering a Document_Open macro and CreateObject calls. ClamAV identifies it as Doc.Downloader.Emotet-9765780-0, a known downloader family. The VBA script is heavily obfuscated but its structure and the presence of CreateObject suggest it is designed to download and execute a second-stage payload, likely using PowerShell given the obfuscated strings resembling PowerShell commands.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
  • 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
478e525c35da71173721eac25da86734da83f0768f80b277d373c9cc7716a5ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 27607 bytes

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