Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 73af704afab87c98…

MALICIOUS

Office (OLE)

130.2 KB Created: 2020-10-14 22:05:00 Authoring application: Microsoft Office Word
MD5: 9a3fe13468fecdde634cd6bc96636d9f SHA-1: f347894e8c7349aa66ff3b72f7969888313646e5 SHA-256: 73af704afab87c982137912838eb528a1a50e1e314ea6ac806b2b1c6e83612bc
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject to execute code, and the ClamAV detection explicitly identifies it as Emotet. The obfuscated VBA code likely downloads and executes a secondary payload, a hallmark of Emotet's infection chain.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9777973-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9777973-1
  • 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
9296410b78ac92b55714bdfa954afbb0bd00efb2266f225f69af6657d47bd2de		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 9460 bytes

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