Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 072751c1432883b1…

MALICIOUS

Office (OLE) / .DOCX

219.5 KB Created: 2020-10-28 06:34:00 Authoring application: Microsoft Office Word
MD5: fd70bd5d1e657183a6d49fc47b7704bd SHA-1: d8b248c17fc3c4d56d1e5f74b9b806fdae8d1168 SHA-256: 072751c1432883b1d8eedc16c5af25355d8e49aa2207b3ebf401b5641ecec311
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 heuristic. The macro uses CreateObject and p-code execution, typical of Emotet. The obfuscated script likely downloads and executes a secondary payload, a common Emotet behavior. The ClamAV detection also strongly suggests Emotet.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
  • 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
5c8508b4422f9cf9f0517311e463bebb8a10b40538c4b01e1d12399253dacfe3		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16608 bytes

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