Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d5496150a225e295…

MALICIOUS

Office (OLE) / .DOCX

161.5 KB Created: 2020-09-24 14:59:00 Authoring application: Microsoft Office Word
MD5: eb057dbeedaf5ce49205d1cf1feb09c5 SHA-1: 7f16a2b29b2b640d03d07d89b836b43457782ed8 SHA-256: d5496150a225e2950b4d68c44020e8bf9b30d640ffbf2d72046c3adbd2584818
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of VBA macros, particularly those that auto-execute and use CreateObject, suggests the document is designed to run code upon opening. The ClamAV detection as 'Doc.Downloader.Emotet' further supports this, pointing to Emotet family activity. The document body, though heavily obfuscated, appears to be constructing a PowerShell command, which is a common technique for downloading and executing further stages of malware.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
  • 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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
478e525c35da71173721eac25da86734da83f0768f80b277d373c9cc7716a5ba		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 27607 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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