Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7abb9489b6326cd1…

MALICIOUS

Office (OLE) / .DOCX

185.0 KB Created: 2020-10-21 05:24:00 Authoring application: Microsoft Office Word
MD5: c756770de75f94b0c33c0870a6741e4c SHA-1: ab2f0c8ec83a08285fa1fce71f58e20b5f059ec5 SHA-256: 7abb9489b6326cd1f02464f62b873ba152c38b8471c54c1d8e63d178cae77c33
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is identified as malicious by ClamAV with the signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', indicating it functions as a dropper. The presence of a Document_Open macro and CreateObject calls strongly suggests that the VBA code is designed to execute automatically when the document is opened. This macro likely downloads and executes a second-stage payload, a common tactic for malware distribution.

Heuristics 6

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
c2d782ff362afeab0ff3ffdb3997adeebbc3bedc56fb1ea2722e18a99469723b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20637 bytes

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