Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 337de8e0e4017737…

MALICIOUS

Office (OLE) / .DOCX

235.2 KB Created: 2020-10-28 21:52:00 Authoring application: Microsoft Office Word
MD5: 24f2c5af48d49b9be0a8bdf1b321a405 SHA-1: 69e87be13694c32e413730703ecf62280005dcd0 SHA-256: 337de8e0e40177373bdf5f53078961535f04a362d6d512a15bd5c33ef6fa9572
240 Risk Score

Malware Insights

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

The file is a DOCX document with a high-confidence detection for VBA macros, specifically triggering on the Document_Open auto-execution event and CreateObject calls. This indicates the macros are designed to run automatically when the document is opened. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the primary purpose is to download additional malicious content. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
  • 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
5aa3aad97a35a46de04017100e8aadce01daec323c971d220dcadfd4335841c1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18882 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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