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

Static analysis result for SHA-256 5d4548534f15df03…

MALICIOUS

Office (OLE) / .DOCX

214.4 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word
MD5: a1db7853379599961a49069af49c6ca7 SHA-1: 0582fd10eae5a060f0a685fdb9fa4d36eed8dca0 SHA-256: 5d4548534f15df03e54ccccf8eaa3a7cd08ac7482dfe65414a7758507e96d7f3
242 Risk Score

Malware Insights

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

The file is a Microsoft Word document with a high-confidence detection for VBA macros, specifically triggering a Document_Open macro that uses CreateObject and GetObject calls. This indicates the macro is designed to execute automatically and likely download additional malicious content. The ClamAV detection as 'Doc.Downloader.Generic' further supports this. No specific family could be identified, but the behavior is consistent with a downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
  • 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.
  • 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
a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19249 bytes

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