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

Static analysis result for SHA-256 11974ec5ce543646…

MALICIOUS

Office (OLE) / .DOCX

218.8 KB Created: 2020-10-28 16:03:00 Authoring application: Microsoft Office Word
MD5: 4ac40402c5e0ac20607fe2544a05bf26 SHA-1: 02455335a608dd9b83deefeefd068a187a3219ea SHA-256: 11974ec5ce543646a57980f46943cb2a955f3d5a1e4732f3afdfd141df1cb76f
202 Risk Score

Malware Insights

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

The file contains a VBA macro with a Document_Open auto-execution function, indicating malicious intent. The macro uses CreateObject and appears to obfuscate strings, likely to download and execute a secondary payload. The ClamAV detection as 'Doc.Downloader.Generic' further supports this assessment.

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
432b4517275395423e4145d722d6a456d77df175cda38550f4e26528858e8adb		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18870 bytes

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