Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 97c84b3491b00cb3…

MALICIOUS

Office (OLE) / .DOCX

183.2 KB Created: 2020-12-23 07:47:00 Authoring application: Microsoft Office Word
MD5: 07ed17e91c61439e9575122adcbd15cb SHA-1: b17dc3f0dc1404515094a6930725b5d440d8038e SHA-256: 97c84b3491b00cb32b26ac143d29922be55d22afa87aa8e8b05006b50c34cf78
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.005 Visual Basic T1059.001 PowerShell T1140 Deobfuscate or Obfuscate

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a malicious downloader. The embedded VBA macro likely executes a second-stage payload. The document body, though heavily obfuscated, appears to be a lure for a fake error message, consistent with Emotet's typical delivery methods.

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
d5578521430d19d3e1a741e6facd5db8ed236e25c6fc3d692889ddd7a6d225bf
vba-macro oletools.olevba.extract_macros (decoded VBA source) 8783 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.