Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 051bab3416af6bd9…

MALICIOUS

Office (OLE) / .DOC

163.3 KB Created: 2020-09-18 04:35:00 Authoring application: Microsoft Office Word
MD5: 23b37513d49889d38ff495538fdb53e4 SHA-1: f447eea595a0e586c4242c549c81477b2ac2bad2 SHA-256: 051bab3416af6bd94e6915cf56888d622360e2d72ba9af4836a6dd31dc13f587
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 Word document containing a VBA macro that is automatically executed upon opening, as indicated by the Document_Open heuristic. The macro is heavily obfuscated but appears to be designed to download and execute a secondary payload, a common characteristic of Emotet. ClamAV detection further supports the Emotet family attribution.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9763318-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9763318-0
  • 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
b0a943f27b229afc0d61565177642c9be098ce97924ee703fbff1ec25a707666		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21996 bytes

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