Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 685256ea285a0375…

MALICIOUS

Office (OLE) / .DOCX

201.3 KB Created: 2020-09-25 06:51:00 Authoring application: Microsoft Office Word
MD5: cdde504e61c163a37362e7b91b8f00cd SHA-1: ba3ce3d9d075e849e8e8f5e1f8586ddaf5215f79 SHA-256: 685256ea285a03753b190f28a32007f358856ab0685da8ec4bb92e259fa10165
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a malicious DOCX file containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV detection identifies it as Emotet. The VBA code appears to construct and execute a PowerShell command, likely to download and execute a further payload. The presence of the 'Document_Open' macro and the 'CreateObject' call are strong indicators of malicious intent.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
  • 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
d802c65eb8f9df036cf46e9408744e30c5d95dae54b582b9f65ecb84ecb28fa8		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25261 bytes

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