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

Static analysis result for SHA-256 0532c370739df2e5…

MALICIOUS

Office (OLE) / .DOCX

153.9 KB Created: 2020-09-14 22:09:00 Authoring application: Microsoft Office Word
MD5: 3205498a1b7df30bda84ea80ddc603d7 SHA-1: 1d2466c47144cca75d674426bee8fe423a6f4cb1 SHA-256: 0532c370739df2e53c54ca96aba8fe96ef6e3fcbda095a26bcae0ac3a90d6c1e
202 Risk Score

Malware Insights

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

The file is a DOCX document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates an attempt to execute code automatically when the document is opened. The ClamAV heuristic also flags it as generic malware. The VBA code appears to be obfuscated, but the presence of auto-execution macros strongly suggests a downloader or dropper functionality.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-9760527-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-9760527-0
  • 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.
  • 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
bf2dc6e4793502154f28a14458af4f5198ccc48932a5641a4c34f7f1fcdc0c82
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18582 bytes