Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
• PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
  PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• External URI info PDF_URI
  PDF contains an external URL action
• 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://mgbig.com/upload_fck/file/2021-9-27/20210927214339933586.pdf In PDF document text

  • http://bm-shower.com/userfiles/files/pigogix.pdfIn PDF document text
  • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/glu902k8sb5qdere84vnaoe2u4/milusupugizusaliwifej.pdfIn PDF document text
  • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/161807716b043e---16657278495.pdfIn PDF document text
  • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/567fbc23dfc0b2bd160159bc1a52f285/45409597475.pdfIn PDF document text
  • http://sunpix.ru/img/lib/file/80634855159.pdfIn PDF document text
  • http://lepetitjaunais.com/userfiles/file/71442686519.pdfIn PDF document text
  • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ec2ff885bb---zuwepemaxo.pdfIn PDF document text
  • https://media-get.com/userfiles/files/nisanuzomif.pdfIn PDF document text
  • http://jn-zhsc.com/upload/gilarugolap.pdfIn PDF document text
  • http://dongzzang.com/userfiles/file///xezorizukilumipewar.pdfIn PDF document text
  • https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/m9h7k8j1p8jikmd2kveh01cmb1/lesajul.pdfIn PDF document text
  • http://bachova-terapia.sk/images/file/zomudunafepusejazat.pdfIn PDF document text
  • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616f17610aac6---89614979758.pdfIn PDF document text
  • http://prasongp.com/file_media/file_image/file/vitole.pdfIn PDF document text
  • http://futiandj.ntgis.com/UploadFile/2021/10/13/file/20211013_074603_173.pdfIn PDF document text
  • https://www.renouer-auxerre.com/ckfinder/userfiles/files/6850816238.pdfIn PDF document text
  • https://eastshop.ir/data/file/vepazibisanenodopupe.pdfIn PDF document text
  • http://xn--oy2b19v1mb1yi.com/userfiles/file/xexusanusujegujisim.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/67269062323.pdfIn PDF document text
  • http://distant-property.ru/fck_editor_files/files/nijelupejanovafo.pdfIn PDF document text
  • https://asiantms.com/ckfinder/userfiles/files/rilatowebagotipirugelom.pdfIn PDF document text
  • http://houtackers.nl/userfiles/file/62416971338.pdfIn PDF document text
  • http://zhizhencn.com/filespath/files/20210923082633.pdfIn PDF document text
  • https://vegan-eshop.cz/data/file/panipoduwufojobara.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Gsjc/~3/KGDyd8lM0uI/uplcv?utm_term=cry+my+beloved+country+meaningPDF link annotation
  • 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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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