Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 ea655f795759ca15…

MALICIOUS

Office (OLE) / .DOCX

140.2 KB Created: 2020-09-30 06:24:00 Authoring application: Microsoft Office Word
MD5: ac849d1c4573b67c27dfa07c207a952c SHA-1: a5d397986ec3323742927624a1dd3bb2a4c4881e SHA-256: ea655f795759ca1512e27548e274c8ff1c99c4a9b95cff43dc171ce297a68dce
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9769539-0'. Static analysis reveals the presence of VBA macros, specifically a 'Document_Open' macro that utilizes 'CreateObject' for execution. This indicates the document is designed to automatically run malicious code when opened, a common characteristic of Emotet malware. The obfuscated document body text does not provide further context on the lure.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769539-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769539-0
  • 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
bf242d2b3eef8a928e95104450a1995792bbbbd70e8fa1b795dc489b41229ac6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10567 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 28 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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