Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 10858368ffe395b2…

MALICIOUS

Office (OLE) / .DOCX

195.4 KB Created: 2020-09-22 04:18:00 Authoring application: Microsoft Office Word
MD5: f76209bd37d2977d305fa4275ad13ace SHA-1: 63c134310262577039ff58e8d61abc8a709c12fa SHA-256: 10858368ffe395b29f45924b63e8f488b63f1c40f8d412d291ffe02bdec44dd8
242 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, which is a common Emotet infection vector. Heuristics indicate the use of CreateObject and GetObject, suggesting dynamic code execution. The ClamAV signature also explicitly identifies it as Emotet. The VBA script is heavily obfuscated but its structure and the presence of auto-execution macros strongly indicate it's designed to download and run a secondary payload.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9764756-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9764756-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
3b0af88f4dd9c23a17bbdbbca50e89a637a2364695c54b84b34b6c26baade961
vba-macro oletools.olevba.extract_macros (decoded VBA source) 19032 bytes