Emotet — Office (OLE) / .DOC malware analysis

Static analysis result for SHA-256 c5c266188bf922f6…

MALICIOUS

Office (OLE) / .DOC

131.4 KB Created: 2020-09-30 18:26:00 Authoring application: Microsoft Office Word
MD5: 91779c3d8c57023a347936b3421dea08 SHA-1: fa664ef7f8e2fee3073c5bf419ad17baeb232ad4 SHA-256: c5c266188bf922f61bc261b0c17850c52d4be33b0dfbd25d1b9c59d3d52bc822
240 Risk Score

Malware Insights

Emotet · confidence 95%

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

The file contains a VBA macro that is automatically executed upon opening, as indicated by the 'Document_Open' macro and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic. The 'CreateObject' call suggests the macro is designed to interact with the system or download additional content. ClamAV detection explicitly identifies this as 'Doc.Downloader.Emotet-9769771-0', strongly suggesting a downloader functionality typical of the Emotet family. The document body content is heavily obfuscated and does not provide clear user-facing text.

Heuristics 7

  • ClamAV: Doc.Downloader.Emotet-9769771-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9769771-0
  • 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
e5aaf9f3439fc51732c94523035a3e61bc2d17c21b6cf92e4d7bbe4fa685ceb9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10171 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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