Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 86dbb41d6058264e…

MALICIOUS

Office (OLE) / .DOCX

124.8 KB Created: 2020-09-30 20:57:00 Authoring application: Microsoft Office Word
MD5: 336c2b04774a0c6705ed047582b01094 SHA-1: d4e89b1b37b5d8bd91e231ad1d30dde931fab2d1 SHA-256: 86dbb41d6058264e118fb00ad05407dbef472020460a4c9f0de0ada45e794935
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, including a Document_Open auto-execution macro, and uses CreateObject, which are strong indicators of malicious intent. The ClamAV detection explicitly names Emotet. The VBA script appears to be obfuscated but is designed to download and execute a second-stage payload, likely from a URL that is constructed dynamically.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769866-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769866-1
  • 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
7cb9b8e5dcd6093fc36997f1ddba9977c3343a23efe112843f21e09b69e64d3a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10245 bytes

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