Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 0564c8bd86a30a6d…

MALICIOUS

Office (OLE) / .DOCX

190.0 KB Created: 2020-10-21 08:44:00 Authoring application: Microsoft Office Word
MD5: 708528292010817c4fd030038cfc008b SHA-1: 0f8d3517f7f2e91c22b414da3fe1fa828bbe9cdd SHA-256: 0564c8bd86a30a6d5f73adf8e176a2b82925865e9ab188708c901e865405bc34
202 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample is identified as malicious by ClamAV with the signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', indicating a dropper functionality. The presence of a 'Document_Open' VBA macro that uses 'CreateObject' strongly suggests the execution of malicious code upon opening. The VBA macro code, though obfuscated, likely facilitates the download and execution of a secondary payload, consistent with Emotet's typical behavior.

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
1495f7c7ced0d5d67a50de030db1d404fcece38568f93b06e33d3100a17ee340		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20761 bytes

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