Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 86d7aeea57890878…

MALICIOUS

Office (OLE) / .DOCX

163.3 KB Created: 2020-09-25 11:29:00 Authoring application: Microsoft Office Word
MD5: 0126766d83e684d15f37a0572ed15584 SHA-1: 27a65fac863f731ae467ce09e857bb6673414f14 SHA-256: 86d7aeea5789087887c51341c3f2594378f73a7b628800f928c9d95ac6bd700c
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The macro uses CreateObject and obfuscated code, indicating an attempt to download and execute a secondary payload. The ClamAV detection explicitly names Emotet, further supporting this classification.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9767804-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9767804-1
  • 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
426aca538f654441d66e245a00bfc928dacf37832bbf946df52799fa3650ecb1
vba-macro oletools.olevba.extract_macros (decoded VBA source) 24489 bytes