Malicious PDF — malware analysis report

Heuristics 6

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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 https://cctraff.ru/aws?keyword=english+grammar+rules+for+bank+exams+pdf In PDF document text

  • https://dozasasakebo.weebly.com/uploads/1/3/1/1/131164234/4083579.pdfIn PDF document text
  • https://rikisuluwujufa.weebly.com/uploads/1/3/1/4/131452938/9433283.pdfIn PDF document text
  • https://leruzifu.weebly.com/uploads/1/3/2/3/132302941/4957856.pdfIn PDF document text
  • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/3754839.pdfIn PDF document text
  • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/1324320.pdfIn PDF document text
  • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/xereromejiv-koxozirusoror-moxonujis.pdfIn PDF document text
  • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/8441923.pdfIn PDF document text
  • https://fidegobopoj.weebly.com/uploads/1/3/2/8/132815019/gozibonewatuke_pekugujawidep_jijuzotakat_kevatata.pdfIn PDF document text
  • https://gexirirexov.weebly.com/uploads/1/3/0/8/130874239/pisaxipolig-zelares-vukaw-wimewiv.pdfIn PDF document text
  • https://firedisivimi.weebly.com/uploads/1/3/0/9/130969818/zenoxuxor_wifaro_lumidaxi.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_01_sfnt_off000095b8.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_01_sfnt_off000095b8.bin)
  • https://s3.amazonaws.com/zetare/webewapekizobubafe.pdfIn PDF document text
  • https://s3.amazonaws.com/pazifetanegapu/74709586439.pdfIn PDF document text
  • https://s3.amazonaws.com/sugaguxagu/fupezemuguxizudawurin.pdfIn PDF document text
  • https://s3.amazonaws.com/fasanag/carson_dellosa_reading_comprehension_grade_1.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0268/8309/6750/files/rumadalidusevoz.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/87314274033.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/a5c75884-8982-418c-943d-0436b92de76c/naratu.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3838d4e2-28a3-4a64-b4b1-36eb3e69f39d/govalejejidimepo.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/5447c687-f99f-4475-b268-98c37040fe90/lia_s_adventure_walkthrough.pdfIn PDF document text
  • https://s3.amazonaws.com/zirojopemup/10865931469.pdfIn PDF document text
  • https://s3.amazonaws.com/levumoduf/mumubadeguduvoji.pdfIn PDF document text
  • https://s3.amazonaws.com/leguvefu/28399757927.pdfIn PDF document text
  • https://s3.amazonaws.com/felasorarabipis/assumptions_of_multinomial_logistic_regression.pdfIn PDF document text
  • https://s3.amazonaws.com/gupuso/adobe_premiere_pro_cs3_tutorial_free_download.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/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://ns.adobe.com/xap/1.0/rights/In PDF document text
  • https://savannah.gnu.org/projects/freefont/In extracted file (font_00_sfnt_off000085d8.bin)
  • http://www.gnu.org/licenses/In extracted file (font_00_sfnt_off000085d8.bin)
  • http://www.gnu.org/copyleft/gpl.htmlIn extracted file (font_00_sfnt_off000085d8.bin)
  • http://scripts.sil.org/OFLIn extracted file (font_01_sfnt_off000095b8.bin)
  • http://dejavu.sourceforge.netIn extracted file (font_04_sfnt_off0000d55d.bin)
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_04_sfnt_off0000d55d.bin)

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