Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 cc4e850a0beb11d1…

MALICIOUS

Office (OLE) / .DOCX

133.7 KB Created: 2020-09-28 07:04:00 Authoring application: Microsoft Office Word
MD5: 8c148c00041f21b2e1d23efb1eec3629 SHA-1: 3257f81e5995c0b433f81807f114dca7fe4f5e65 SHA-256: cc4e850a0beb11d14aec852dde896250ecea77cfbee9a9388ab5057437152166
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open auto-exec macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9768657-0', pointing to the Emotet family. The macro's use of CreateObject and p-code auto-execution suggests it's designed to download and execute a secondary payload. The document body content is obfuscated and does not provide further clues.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9768657-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9768657-0
  • 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
e75df2f1d58eb5949c0678a2356db3178c4d0bfd05af2a59d3cebacf3557baf1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6244 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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