Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 7f06faf1bbfa2f11…

MALICIOUS

Office (OLE) / .DOCX

169.9 KB Created: 2020-10-20 06:24:00 Authoring application: Microsoft Office Word
MD5: f0ead2085febbcafe9e07f282bbb7a63 SHA-1: 71f0cb1f9213dbbe7caa983f24ebe0107d9a5cf1 SHA-256: 7f06faf1bbfa2f11015ac90187295cd3de0a5dd5ce8e4c9765ed5be616fbc35b
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file was detected as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9780995-0'. Static analysis revealed the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject. This indicates the macro is designed to download and execute a second-stage payload, a common Emotet delivery technique. The document body content is heavily obfuscated and unreadable.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9780995-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9780995-0
  • 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
9c144e4934aa06f4a846d3460cf32982827c1cabf227410ae75b7d2e86969ea7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17539 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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