Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 78f3005049ec1854…

MALICIOUS

Office (OLE) / .DOCX

180.5 KB Created: 2020-10-21 10:22:00 Authoring application: Microsoft Office Word
MD5: 4314027191aa84e37fd55a3e62cbb6bd SHA-1: 6b1be7e263931a2f36d9b7ad00b053d0d9121dce SHA-256: 78f3005049ec1854b2a0a85b6435b252cadce5e63c4398a38166b870b46b4197
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, specifically a Document_Open macro that uses CreateObject, indicating it's designed to execute malicious code upon opening. The ClamAV detection name 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0' strongly suggests this is a dropper for the Emotet banking trojan, which is known to download and execute further payloads. The obfuscated VBA script, while not fully decipherable, aligns with Emotet's typical behavior of downloading and running secondary stages.

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
2d652a5f62c7cd7db265ab6f01298582724932c4485a1fde21ad075960ba4c72		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20722 bytes

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