Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 6b5f1098d80a5778…

MALICIOUS

Office (OLE) / .DOCX

157.3 KB Created: 2021-01-12 17:56:00 Authoring application: Microsoft Office Word
MD5: a4c9c18333d90b69794b418d817efdeb SHA-1: cab9d8b3bc2b1ba77432157c4897184388ac2a05 SHA-256: 6b5f1098d80a577872a3ab76fb2571ec4584a05ef39f67cbebeebf5413217f48
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 that uses CreateObject, indicating malicious intent. ClamAV detection as 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests the Emotet family. The VBA code is heavily obfuscated, but the presence of a Document_Open macro and CreateObject points to a downloader functionality, likely to fetch and execute a secondary payload.

Heuristics 6

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
4eb2f1bd4f83b8d42d810ea94c6b146c20ccf37b8d5d53b11fcf53c71b96e42e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 7385 bytes

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