Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 d3605aa31c4dfa3f…

MALICIOUS

Office (OLE) / .DOCX

164.2 KB Created: 2020-10-01 15:57:00 Authoring application: Microsoft Office Word
MD5: 940f4d256d27eaf5058f262a2e19e8e1 SHA-1: 76c8b8b8a7f523fad835ff7da74e74f00914d8fd SHA-256: d3605aa31c4dfa3f5afc109dbc326360cb6eb1c0ab7e40c6865eadae3c74d243
240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9770197-0'. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open macro that uses CreateObject and p-code auto-execution, strongly suggesting it's designed to run malicious code. The obfuscated document body content further supports the presence of malicious scripting. The primary attack pattern involves leveraging VBA macros to initiate execution, likely for downloading and executing additional malicious payloads.

Heuristics 7

  • ClamAV: Doc.Malware.Emotet-9770197-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emotet-9770197-0
  • 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
34626713db5720b3147c8823fb8dfd0fe34a12fce4df5a0aa65f24e3eab9d078		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10368 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 53 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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