Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 949394bdc364c283…

MALICIOUS

Office (OLE) / .DOCX

189.0 KB Created: 2020-10-21 20:47:00 Authoring application: Microsoft Office Word
MD5: e0f8868972fb9d63b9f4aa5bb2b25678 SHA-1: e38749dd3803ea3f8ea58cf73c2b031a0ee0ae99 SHA-256: 949394bdc364c283732e10d165b523463c5e3415f4ca80269720f45609aaf1a8
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0', indicating it's a dropper. The presence of a Document_Open macro that uses CreateObject and p-code auto-execution strongly suggests it's designed to execute arbitrary code. This macro likely downloads and executes a second-stage payload, a common characteristic of Emotet droppers.

Heuristics 7

  • ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
  • 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
de68eb219c86c839b194b174abd2b170f818ab76547e269289797596310c601e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 23214 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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