Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 6bd70c37738737b1…

MALICIOUS

Office (OLE)

147.3 KB Created: 2020-10-15 16:33:00 Authoring application: Microsoft Office Word
MD5: 30293b6bce94db6b6268c45255e46a73 SHA-1: 562c2051d0d06a0c2c1e34c63152465d8025e909 SHA-256: 6bd70c37738737b137dddf5e137cff39eb5baeca80217787c95d5ce885c5854a
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9778182-0. Static analysis revealed a VBA macro within the document, specifically a Document_Open macro that utilizes CreateObject. This macro is designed to download and execute a second-stage payload, a common characteristic of Emotet. No specific URLs or executable payloads were directly extracted, but the presence of the macro and the ClamAV signature strongly indicate Emotet activity.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9778182-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778182-0
  • 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
73784b5943cf314d0c94351f697d020542e983828c792237442b7715b42f981c		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 12871 bytes

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