Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 4b40209defb6a8ee…

MALICIOUS

Office (OLE) / .DOCX

142.0 KB Created: 2020-09-29 09:08:00 Authoring application: Microsoft Office Word
MD5: 3e42d9a40d484f710dd84cf6ffd3730d SHA-1: 6ce6efdc46d2d38123f3a4f4871adca89432aab2 SHA-256: 4b40209defb6a8ee079d69bd340f6539efcb4d3852381ee79a94227bec9f56e7
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating an auto-execution payload. ClamAV detection explicitly identifies this as 'Doc.Downloader.Emotet-9769137-0'. The macros are designed to download and execute a second-stage payload, a common Emotet distribution technique. The document body appears to be obfuscated or corrupted, providing no direct user-facing lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769137-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769137-0
  • 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
2f5b3223d32b6b79c027453efef3c5410c27df5205b9cb2b32dd9a1e0304e007		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 8132 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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