PDF / .VIR static analysis report

Heuristics 4

• TrueType bitmap font + active content — CVE-2023-26369 related info CVE related PDF_CVE_2023_26369_RELATED
  PDF embeds a TrueType font with bitmap tables (EBDT/sbix/CBDT) alongside exploit delivery indicators — CVE-2023-26369 exploits the sfac_GetSbitBitmap function in Adobe's libCoolType for arbitrary code execution. This CVE was actively exploited in the wild, but this rule does not validate the malformed EBLC/EBDT primitive.
• AcroForm button with action trigger low PDF_ACROFORM_BUTTON
  PDF contains a /Btn form field together with a SubmitForm/URI/Launch/JS trigger — this is the building block of fake 'Download' or 'Open' button overlays used in PDF phishing lures
• 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.
• 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://www.w3.org/1999/02/22-rdf-syntax-ns# In PDF document text

  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/AcrobatAdhocWorkflow/1.0/In PDF document text
  • http://www.microsoft.com/typography/ctfontshttp://lucasfonts.comMicrosoftIn extracted file (stream_003_off00005b69.bin)
  • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/typography/fonts/default.aspxIn extracted file (stream_003_off00005b69.bin)
  • http://crl.microsoft.com/pki/crl/products/MicrosoftTimeStampPCA.crl0XIn extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/pki/certs/MicrosoftTimeStampPCA.crt0In extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/pkiops/crl/MicCodSigPCA2011_2011-07-08.crl0aIn extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/pkiops/certs/MicCodSigPCA2011_2011-07-08.crt0In extracted file (stream_003_off00005b69.bin)
  • http://crl.microsoft.com/pki/crl/products/microsoftrootcert.crl0TIn extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/pki/certs/MicrosoftRootCert.crt0In extracted file (stream_003_off00005b69.bin)
  • http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl0^In extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/pki/certs/MicRooCerAut2011_2011_03_22.crt0��In extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/pkiops/docs/primarycps.htm0@In extracted file (stream_003_off00005b69.bin)
  • http://www.microsoft.com/TypographyIn extracted file (stream_003_off00005b69.bin)
  • http://www.monotype.com/html/mtname/ms_symbol.htmlhttp://www.monotype.com/html/mtname/ms_welcome.htmlMicrosoftIn extracted file (font_02_sfnt_off0001c0ca.bin)
  • http://www.monotype.com/html/type/license.htmlIn extracted file (font_02_sfnt_off0001c0ca.bin)

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