Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 5e140e968dc7d972…

MALICIOUS

Office (OLE) / .DOCX

189.5 KB Created: 2020-10-21 08:44:00 Authoring application: Microsoft Office Word
MD5: 867bfe8ee784e61b9e781dd976b1528a SHA-1: 2042f1acb1ddb678f74fe716f18ab394d0d94d83 SHA-256: 5e140e968dc7d972b9799ab18a96cc056bf78fe1d5340c72ba9bd4486ed71d60
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', indicating it's a dropper. Heuristics confirm the presence of VBA macros, specifically a Document_Open macro that uses CreateObject, suggesting it's designed to execute code upon opening. The obfuscated VBA script likely downloads and executes a secondary payload, a common tactic for Emotet.

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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