Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 007235d5a7194d94…

MALICIOUS

Office (OLE) / .DOCX

150.0 KB Created: 2020-09-18 17:14:00 Authoring application: Microsoft Office Word
MD5: 1b260b6312875ad73cba6e0d9e0a0627 SHA-1: 67c9f552164f2f92c0dc73b910fe1b456ebcf7d6 SHA-256: 007235d5a7194d94f5ea60ef1b957c3cee5c1d97918ef115e77b1d4b1836577a
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the Document_Open macro and p-code auto-execution heuristics. The ClamAV detection explicitly names this as 'Doc.Downloader.Emotet-9763589-0', strongly suggesting the Emotet family. The macro's obfuscated nature and use of CreateObject point towards downloading and executing a secondary payload, a common Emotet tactic.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9763589-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763589-0
  • 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
96b83a59c729d4e2629caf4138babfc6cae62a32b23cb8c4d357b221daf4ba67		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20042 bytes

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