Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 771ba9743eaa7a81…

MALICIOUS

Office (OLE) / .DOCX

239.5 KB Created: 2020-10-28 10:47:00 Authoring application: Microsoft Office Word
MD5: 62263c8e21930b6119562f2c4f29663c SHA-1: f80d53c8bc50cb6aa352b670d8b1b4193f7ee3ef SHA-256: 771ba9743eaa7a81ea01d78249e8ce6036aad863239b14e7398d964e75af7364
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject to execute obfuscated code. This behavior is characteristic of Emotet, which often uses macro-enabled documents to download and execute further malicious payloads. The ClamAV detection further supports this classification.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
46faaf06a16ada9e49d018565258705c67fc1202bb8b7fa1b6772e3ca9589e8c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17107 bytes

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