Emotet — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 fca5ada50488546f…

MALICIOUS

Office (OLE) / .DOCX

157.7 KB Created: 2020-09-23 09:30:00 Authoring application: Microsoft Office Word
MD5: c0bb8b1d27514148c68c17d0675d91b7 SHA-1: bce9866a9a555c6525c823a803f6c7d6a6f7fadc SHA-256: fca5ada50488546f6264160c97160e6050ad9a03349fbe82a687f31a1757dc43
280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for Emotet. The ClamAV detection explicitly names Emotet and identifies the file as a downloader. The presence of CreateObject and GetObject calls within the VBA code suggests the execution of external code or resources, consistent with a downloader's behavior. The document body content appears to be obfuscated or malformed, providing no discernible user-facing lure.

Heuristics 8

  • ClamAV: Doc.Downloader.Emotet-9765530-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Emotet-9765530-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
f2279a4d422668b89c293cd032386976cc753a5ff4104c672bc17e53928a662a		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20002 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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