Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 125b5cd4a3af9b63…

MALICIOUS

Office (OLE) / .DOCX

189.0 KB Created: 2020-10-21 20:47:00 Authoring application: Microsoft Office Word
MD5: 772f24693b5742bda3b9b4219ccbb99b SHA-1: 536ad955b637638d3d7e93b1bbd6a69fef95e8dd SHA-256: 125b5cd4a3af9b6349d297cafd2fe139ac13e7acc337d95cd3c034e2d89ba91c
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 Word document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This is a common pattern for Emotet malware to download and execute a secondary payload. The ClamAV detection name 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0' further supports this classification.

Heuristics 6

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
de68eb219c86c839b194b174abd2b170f818ab76547e269289797596310c601e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23214 bytes

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