Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0b50109aa3bc171f…

MALICIOUS

Office (OLE) / .DOCX

157.9 KB Created: 2020-10-20 04:30:00 Authoring application: Microsoft Office Word
MD5: 2d0d71beb537c76e980a0d5243878378 SHA-1: 75625b93e2dcbb5d4174824042d5792043cb99f9 SHA-256: 0b50109aa3bc171ff9f379afe7a80a952c4255a6ef6c82aa8dfd5f2d988dfe42
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, including a Document_Open macro, which is a common technique for Emotet. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9780400-0'. The macro likely uses CreateObject to download and execute a second-stage payload, as indicated by the heuristics.

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

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