Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0581f0969b158a86…

MALICIOUS

Office (OLE) / .DOCX

189.2 KB Created: 2020-09-29 13:18:00 Authoring application: Microsoft Office Word
MD5: ac6d96bfa166e3f65d5d00e38f7c6cf6 SHA-1: ade203d1facec89985383483b422421f96342881 SHA-256: 0581f0969b158a86c635f6c5a3931c57571aaaae1eb93475efeb0fcb6a99d1f9
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the 'Document_Open' macro firing. The macro uses 'CreateObject' and obfuscated code, typical of Emotet malware, to likely download and execute a secondary payload. The ClamAV detection also explicitly names Emotet.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9769343-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9769343-0
  • 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
3466a25e0ec8edf0a3d6ff61e66e8183246c716be04ca7cccaa39032367b5dbf		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10303 bytes

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