Emotet — Office (OLE) malware analysis

Static analysis result for SHA-256 dba3253b065b07ea…

MALICIOUS

Office (OLE)

141.2 KB Created: 2020-10-15 06:09:00 Authoring application: Microsoft Office Word
MD5: 72acc1fcd4f55dff41ed0d3237649305 SHA-1: 0a07bae91bd009ace39d317c245016df835f83ae SHA-256: dba3253b065b07eab3cdf4218e23d9dbfa4b6cee3dd62c55fc82650ef2e43149
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV heuristic and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro activity. The presence of a Document_Open macro that uses CreateObject is a common pattern for Emotet downloaders. The ClamAV detection name further supports the Emotet family attribution. The document body content is obfuscated and does not provide direct clues to the attack's pretext.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9778170-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9778170-0
  • 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
c973a96acafb9aae0a5d75a01318346c913bca2d5caab3be2a38d764d4134fb6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 11038 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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