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

Static analysis result for SHA-256 13e462d6dc61d17b…

MALICIOUS

Office (OLE) / .DOCX

215.0 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word
MD5: 47d22a5e98de8b833234d113f9d2710f SHA-1: a164cca310fcc393d7065e8da1a271f6b0995789 SHA-256: 13e462d6dc61d17b76d36ac1d5c4f9a990923084f48ef4eabbdb660847f54e87
242 Risk Score

Malware Insights

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

The sample is a Microsoft Office document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically, along with calls to 'CreateObject' and 'GetObject', indicating malicious intent. ClamAV also detected this as a downloader. The VBA script is heavily obfuscated, but its presence and execution context strongly suggest it is designed to download and execute a secondary payload.

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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