Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 a1fdf33a6059ebf6…

MALICIOUS

Office (OLE) / .DOC

202.8 KB Created: 2020-12-22 13:44:00 Authoring application: Microsoft Office Word
MD5: 0018b93258c7aa98a26a2e9e513c3259 SHA-1: dc88774a8809279b9792d0fc29ef9c479fbed23a SHA-256: a1fdf33a6059ebf60789dee54e848a68b8a9cb1dece7027071b790a762bdd87c
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a common delivery mechanism for Emotet. The macro uses CreateObject to likely download and execute a second-stage payload. The ClamAV detection explicitly names Emotet, increasing confidence in the family attribution.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
  • 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
846fe25f5f9746930cb6a9d1260b32582242e9a1ff5eb860d3d39ee116c92505		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16295 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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