Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 227d9d53a4838c61…

MALICIOUS

Office (OLE) / .DOCX

166.3 KB Created: 2020-09-24 20:34:00 Authoring application: Microsoft Office Word
MD5: 0a410a3d4af91894fc9b76a30eaf1123 SHA-1: 4ab62ce5c16dca59b8bb7124affc79a4d74ef0ce SHA-256: 227d9d53a4838c613683bb0d4432815d5ee52ea0dc874f7ae39aa683fe6d718b
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution via Document_Open and CreateObject calls, strongly indicate malicious intent. The presence of the 'macros.bas' artifact and the detection as 'Doc.Downloader.Emotet' further support this. The document body, though heavily obfuscated, appears to contain encoded commands that likely facilitate the execution of a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
  • 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
20065c1f06a22de094d8fc279802a5adedc919206be7ae0d9cd9ee9d315ea30b		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25868 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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