Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 fffbe59f1dc6c2de…

MALICIOUS

Office (OLE) / .DOC

178.2 KB Created: 2020-09-18 13:57:00 Authoring application: Microsoft Office Word
MD5: 8b9b25dcc4c30d663f4bbf0acca42405 SHA-1: 0efae5bc481d9fa2cf27d7d2012a35f2639bf5eb SHA-256: fffbe59f1dc6c2deda79ca2307558610f2c5abb3e030a07d7e0be1969e2fd45c
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file is a malicious OLE document containing a VBA macro that automatically executes upon opening, as indicated by the 'Document_Open' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristics. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-9763587-0', strongly suggesting the Emotet family. The macro's purpose is to download and execute a second-stage payload, a common Emotet delivery technique. No specific download URL was extracted, but the presence of the macro and the Emotet family attribution are high-confidence indicators.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9763587-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9763587-0
  • 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
d480f4e62437f12b4fdbfa09699c3791dd8e97ee1633f946eb76ef39a2f5d3e4		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20121 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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