Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 742fdd81b47ff4f1…

MALICIOUS

Office (OLE) / .DOCX

167.1 KB Created: 2020-10-20 13:16:00 Authoring application: Microsoft Office Word
MD5: 352b1691f661e3729af5ddf6687a9d61 SHA-1: 649792d4b974b6485eaeebe9e169db6646bf7875 SHA-256: 742fdd81b47ff4f1ff37be5fbeba3f6a2cb26f486286db5595b7ab186582e0ff
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro attempts to create objects and execute code, likely to download and run a secondary payload. ClamAV also explicitly detected this as Doc.Downloader.Emotet.

Heuristics 6

  • ClamAV: Doc.Downloader.Emotet-9780849-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780849-0
  • 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
db983f63a3f14ba21ce878505faeebf248407a72c9ac689ac190379ed7abf96d		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17571 bytes

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