Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 025c53c15a718576…

MALICIOUS

Office (OLE) / .DOCX

159.5 KB Created: 2020-10-26 20:02:00 Authoring application: Microsoft Office Word
MD5: 665d3a90005697fd1b217cf3fa6e4b7e SHA-1: 454152c1d0bacf111571088616ab6cb51a71555f SHA-256: 025c53c15a718576f252e314fd616fd0254ba584908745032798dcd45f930eb1
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 contains VBA macros, including a Document_Open auto-execution macro, which is a common Emotet infection vector. The ClamAV detection explicitly names Emotet. The macros likely download and execute a second-stage payload, as indicated by the CreateObject heuristic and the general behavior of Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9784039-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784039-0
  • 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
25a58c4e712d1085864e82f7ab775526ec6adf7a6a7c9b5168c373897e87509d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15931 bytes

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