Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 39b408479c9b71f2…

MALICIOUS

Office (OLE) / .DOCX

182.5 KB Created: 2020-10-27 09:55:00 Authoring application: Microsoft Office Word
MD5: 78fe13e13af502ce9adcbccd3e834917 SHA-1: 92c01133bd13bdb433a69c077d7eb152b3326f47 SHA-256: 39b408479c9b71f2255dbb68b69c160ba53dde08fdcf127f2ca2598fefa640eb
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. ClamAV detection confirms this, identifying it as 'Doc.Downloader.Emotet-9784225-0'. The presence of a 'CreateObject' call within the VBA p-code further suggests the macro is designed to download and execute a second-stage payload. The obfuscated document body text does not provide clear user-facing content, reinforcing the likelihood of a malicious lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9784225-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9784225-0
  • 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
d266e0e433b4f1ca206b8db182ee793bd3229a389f65ad6b52e9aace0436fd0a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15938 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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