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

Heuristics 6

• OLE2Link / URL Moniker → remote loader — CVE-2017-0199 critical CVE likely CVE_2017_0199
  Document contains an embedded OLE link object whose URL Moniker points to a remote URL. When the host file is opened, Office follows the link, downloads the URL, and processes the response based on its Content-Type (HTA -> mshta.exe, RTF → Word, etc.) — the documented CVE-2017-0199 primitive. The URL extension is not a reliable filter; servers can return different payloads to Office's user agent.
• Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE
  A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
• VBA project contains no executable statements info OLE_VBA_MACROS
  Document contains a VBA project, but extracted modules only contain attributes/options/comments and no executable statements.
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• PDF paints image(s) but contains no text operators info PDF_IMAGE_ONLY_LURE
  PDF has 2 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
• 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 https://getabre.com/HRAIGj In document text (OLE body)

  • http://evertype.comhttp://tulrich.comCopyrightIn document text (OLE body)
  • http://schemas.microsoft.com/office/2006/metadata/longPropertiesIn document text (OLE body)
  • http://schemas.openxmlformats.org/officeDocument/2006/customXmlIn document text (OLE body)
  • http://schemas.microsoft.com/office/2006/metadata/contentTypeIn document text (OLE body)
  • http://schemas.microsoft.com/office/2006/metadata/properties/metaAttributesIn document text (OLE body)
  • http://schemas.microsoft.com/office/2006/metadata/propertiesIn document text (OLE body)
  • http://www.w3.org/2001/XMLSchemaIn document text (OLE body)
  • http://schemas.microsoft.com/sharepoint/v3In document text (OLE body)
  • http://schemas.microsoft.com/office/2006/documentManagement/typesIn document text (OLE body)
  • http://schemas.openxmlformats.org/package/2006/metadata/core-propertiesIn document text (OLE body)
  • http://www.w3.org/2001/XMLSchema-instanceIn document text (OLE body)
  • http://purl.org/dc/elements/1.1/In document text (OLE body)
  • http://purl.org/dc/terms/In document text (OLE body)
  • http://schemas.microsoft.com/office/internal/2005/internalDocumentationIn document text (OLE body)
  • http://dublincore.org/schemas/xmls/qdc/2003/04/02/dc.xsdIn document text (OLE body)
  • http://dublincore.org/schemas/xmls/qdc/2003/04/02/dcterms.xsdIn document text (OLE body)
  • http://scripts.sil.org/OFLIn document text (OLE body)
  • http://scripts.sil.org/OFLRupakaraRegularRupakaraIn document text (OLE body)

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