Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6b20a791dcb305a9…

MALICIOUS

Office (OLE) / .DOCX

153.5 KB Created: 2020-09-23 06:50:00 Authoring application: Microsoft Office Word
MD5: dc77a58e937fcab2da4447be75949289 SHA-1: 94b01b77aa9e8a94d1cbc5b2d44b02c019e3f248 SHA-256: 6b20a791dcb305a95fc85a4525f1f9c29f3064bdba27b7bffe8260445377071c
242 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious Office document containing VBA macros, specifically triggering a Document_Open macro that uses CreateObject and GetObject calls. ClamAV identifies it as Doc.Downloader.Emotet, a known downloader family. The VBA script is heavily obfuscated but the presence of a Document_Open macro and the Emotet family strongly suggest it's designed to download and execute a secondary payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765526-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765526-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
b9cffb0e79babc4a34c180b4e03d44a772a85b301d6c58e52fd57eb504592664		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19838 bytes

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