Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 3f3242395a2a0037…

MALICIOUS

Office (OLE) / .DOCX

167.3 KB Created: 2021-01-05 17:50:00 Authoring application: Microsoft Office Word
MD5: c283e82ef09d103cd300c0ae9d0a15a2 SHA-1: 5a82528c3130dd9faeb19127f8a4259d92842801 SHA-256: 3f3242395a2a00370faff7500b86d7456d6dca638120963143d6158fb8c7f931
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious macro downloader. The obfuscated document body text further supports the attempt to lure the user into enabling macros. The detected ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' directly points to the Emotet family.

Heuristics 7

  • ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
  • 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
4ad47f06387c2fe26b40af7c5c3febabd490580f16728c81acf291150b2fb0bb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10757 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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