Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 69fda7852e8bb153…

MALICIOUS

Office (OLE) / .DOCX

191.3 KB Created: 2020-07-17 19:01:00 Authoring application: Microsoft Office Word
MD5: 6ec1610259276cd008cf7af697b1f53d SHA-1: d1696fb1fea73ab6bce7d5c4f81c6b4a146bb4de SHA-256: 69fda7852e8bb1536d60567e061a42139a071a604855852101bb0d4d3ffdaff8
262 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro and a hidden UserForm command stager, which are strong indicators of malicious intent. ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-10022426-0', confirming its association with the Emotet family. The VBA code's structure suggests it's designed to download and execute a secondary payload.

Heuristics 7

  • VBA UserForm hidden-property command stager critical OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER
    VBA auto-exec macro creates a COM object from a decoded variable and reconstructs command text through Split/Join and hidden UserForm properties such as ControlTipText, Tag, Pages, or HelpContextId. This is a high-confidence macro downloader/loader shape seen in the reviewed OLE set, but it is not an Office CVE exploit primitive.
  • ClamAV: Doc.Downloader.Emotet-10022426-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10022426-0
  • 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
3cb7f0c2e3797397e7e20fa4d7d9e38b30fa9c54539bba1e1a3425823403f213		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 69045 bytes

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