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

Static analysis result for SHA-256 8937064c7ab860bf…

MALICIOUS

Office (OLE) / .DOCX

159.9 KB Created: 2020-09-22 07:35:00 Authoring application: Microsoft Office Word
MD5: fc0bde955acba33e38199d798b7efc20 SHA-1: b7b62a80275e5dc942c526ec6fb491420f420c1b SHA-256: 8937064c7ab860bfd3cba7621752a85796caa4092d34225474a42f0f6a5ce234
242 Risk Score

Malware Insights

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

The sample contains VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. This indicates an attempt to execute arbitrary code upon opening the document, a common technique for delivering second-stage malware. The ClamAV detection further supports its malicious nature. No specific IOCs like URLs or file paths were directly extractable from the obfuscated script.

Heuristics 7

  • ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
  • 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
a112d95a2b3b8361e272604fc368010c1a607c2cd21f88c20a607d79b8ac6136		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 16742 bytes

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