Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 27eba47f653b1979…

MALICIOUS

Office (OLE) / .DOCX

159.1 KB Created: 2020-09-17 04:18:00 Authoring application: Microsoft Office Word
MD5: d86f4cae73a7076e49edda4405eeaa99 SHA-1: a5e5439b927f38497c38a7886123e9716ec09922 SHA-256: 27eba47f653b19797edea37d8dbf75215328081ca3b6abb42719eb226a877a5d
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The critical ClamAV detection explicitly identifies this file as 'Doc.Downloader.Emotet-9762517-0'. High-severity heuristics confirm the presence of VBA macros, specifically a 'Document_Open' auto-execution macro that utilizes 'CreateObject'. This strongly indicates the document is designed to run malicious code upon opening, consistent with Emotet's typical delivery mechanism. The macro's purpose is to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9762517-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9762517-0
  • 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
991adc1ef45638c65bfb92a710fcbce350fe87d4c8d6f02dc16d9130cc12b6e6		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20616 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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