Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 164394c49305b997…

MALICIOUS

Office (OLE) / .DOCX

161.6 KB Created: 2020-10-16 18:44:00 Authoring application: Microsoft Office Word
MD5: f85673b9f5f3a0dca91e322affa82f5d SHA-1: c4490337f16a2bf1e5753e76d135c4ff0d8cc0d6 SHA-256: 164394c49305b99720cbc80504c003fa10b45232decac5c6e7ec20bf1827374e
202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject. This is a common technique for Emotet to download and execute a secondary payload. The ClamAV detection also strongly suggests Emotet. No external URLs were directly observed in the document body or scripts, but the macro's functionality implies network communication for payload retrieval.

Heuristics 6

  • ClamAV: Doc.Malware.Emotet-9778591-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9778591-0
  • 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
fcaa38ed96b1b218739bafc5403c2803ab83f37a0565afb297027068f0a0ee86		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15517 bytes

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