Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 234955e0be5d377f…

MALICIOUS

Office (OLE) / .DOCX

179.0 KB Created: 2020-10-27 08:32:00 Authoring application: Microsoft Office Word
MD5: 87a2cc26ef47affe9c94bb6fec73f2a1 SHA-1: ee1b934efd437763bf1e7d02f0499e8189d1fa00 SHA-256: 234955e0be5d377f05bf691ca473a7056ad1fb75fc8fc2454d8c7d20b3ad27c1
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV heuristic identifies this file as Emotet, a known downloader. The presence of a Document_Open VBA macro, combined with CreateObject calls and p-code execution, strongly indicates that the macro is designed to download and execute a second-stage payload. The heuristic 'OLE_VBA_PCODE_AUTOEXEC_EXEC' specifically points to auto-execution via CreateObject, a common Emotet technique. The document body text appears to be heavily obfuscated or corrupted, providing no clear user-facing 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
baddc5814f280b1183f5ed27ce7fb5b9c59037bb5bb89b6abd277ce8e9a0cbe5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15918 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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