Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0843e95e73e1d9c7…

MALICIOUS

Office (OLE) / .DOCX

240.0 KB Created: 2020-10-28 10:47:00 Authoring application: Microsoft Office Word
MD5: 13ee960650235247693885fe96df836c SHA-1: 222a27b6a522cb17e6aa3ed6da0090412744fd9a SHA-256: 0843e95e73e1d9c719d84439a7243f080d431179cc900f1d3744cadcb2d19d38
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is a Microsoft Word document containing VBA macros, specifically a Document_Open macro that executes code. Heuristics indicate the use of CreateObject and p-code execution, consistent with Emotet malware. The VBA script, while obfuscated, appears to be designed to download and execute a secondary payload, as suggested by the structure and the presence of an embedded URL.

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
46faaf06a16ada9e49d018565258705c67fc1202bb8b7fa1b6772e3ca9589e8c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 17107 bytes