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

Static analysis result for SHA-256 6c58da1bd5eede82…

MALICIOUS

Office (OLE) / .DOCX

264.0 KB Created: 2020-10-28 13:40:00 Authoring application: Microsoft Office Word
MD5: 67c8c2e89b241495c8c991595f1f8786 SHA-1: 68eec39a633783c9d5bd4edd44331000810258ad SHA-256: 6c58da1bd5eede82cb348babe12cc31203210597052750d996977b49d09b08a8
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The file is a malicious DOCX document containing a VBA macro. The macro is obfuscated but appears to use `CreateObject` and `Replace` functions, suggesting it modifies document content and potentially downloads a second-stage payload. The ClamAV detection confirms its malicious nature as a downloader.

Heuristics 6

  • 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.
  • 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
04f0b14197f396c9b03f7b934599b1b01d62a486cd3090375b867094895917c9		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18531 bytes

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