Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6bb4e7b97038ccd2…

MALICIOUS

Office (OLE) / .DOCX

157.0 KB Created: 2020-10-20 04:30:00 Authoring application: Microsoft Office Word
MD5: 7793c25a9e45fd66f0f1891723c5c9b9 SHA-1: 98f55fa2bad9f31b929bc3c5d133405f87c00fd0 SHA-256: 6bb4e7b97038ccd27d37b724f8ab99258cd0ce4894cc8b00b0256b6fd9f392a5
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample is a Microsoft Office document containing obfuscated VBA macros, specifically triggering a Document_Open auto-execution macro. The presence of CreateObject calls and the ClamAV detection as 'Doc.Downloader.Emotet' strongly indicate its malicious intent. The VBA macro is designed to execute code, likely to download and run a further stage, consistent with Emotet's downloader functionality.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9780400-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780400-0
  • 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
bec182db065394791f950a49edfb2bfa66cb6693b62758841681c782964c8b6d
vba-macro oletools.olevba.extract_macros (decoded VBA source) 15615 bytes