Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 668a614fe2cee0a5…

MALICIOUS

Office (OLE) / .DOCX

201.8 KB Created: 2020-12-21 13:51:00 Authoring application: Microsoft Office Word
MD5: 6859552efd619d36579e5406524165ba SHA-1: 5b776a98d4c3bfca002e41b549574663e5a940e8 SHA-256: 668a614fe2cee0a5e65efe0709f83fa5abbd26fdddaf54e45088f3886802e22e
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. ClamAV identifies this as Emotet, a known downloader family. The macro likely downloads and executes a second-stage payload from a remote source, consistent with Emotet's behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
  • 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
2b9ea9508201ca52b68627b510c681a978bf300b4bdc4157831522ad5544bdf3		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10348 bytes

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