Malicious PDF — malware analysis report

Heuristics 8

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• 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.
• Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
  Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
• 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 https://varbackaforskola.se/ckfinder/userfiles/files/54046460016.pdf In PDF document text

  • http://vinhhangvien.com/upload/files/niviluropize.pdfIn PDF document text
  • http://szilasfood.hu/pic_upload/files/dotem.pdfIn PDF document text
  • http://ktai.lmg.jp/upload/file/27097887609.pdfIn PDF document text
  • http://cen7dias.es/userfiles/files/menubozilusibotines.pdfIn PDF document text
  • http://wwsm-hk.com/files/file/suposutidi.pdfIn PDF document text
  • http://kaies.cn/upfiles/file/pomowikofiferifebujumelas.pdfIn PDF document text
  • http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/zetijomipevulilukaserelaf.pdfIn PDF document text
  • http://dush-kz.ru/uploads/fck/file/50295314356.pdfIn PDF document text
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/tmv7al5laaedqg29je6mgmqp9j/26843346847.pdfIn PDF document text
  • http://gld-lining.com/user_img/files/tebulite.pdfIn PDF document text
  • https://www.icicle-mountaineering.ltd.uk/ckfinder/userfiles/files/34994803110.pdfIn PDF document text
  • http://jiuxingchaoshi.com/uploads/file/200625046577.pdfIn PDF document text
  • http://vhshf.de/File/nulizogidefiluwejesaxavon.pdfIn PDF document text
  • https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143244ed2ff6---1920463227.pdfIn PDF document text
  • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/1llnvtdll6n85uhkohhjmsea46/72931457759.pdfIn PDF document text
  • https://rawoctane.com/uploads/file/68468399446.pdfIn PDF document text
  • https://www.aledrukujemy.pl/ckfinder/userfiles/files/82338700611.pdfIn PDF document text
  • http://bkmarine.net/ckfinder/userfiles/files/1630755130.pdfIn PDF document text
  • http://highspiritsmusic.com/ckfinder/userfiles/files/kevepoxixo.pdfIn PDF document text
  • https://118highschool.am/wp-content/plugins/super-forms/uploads/php/files/5eb253f61dadd1d94d33e75115b5ca5c/diwefu.pdfIn PDF document text
  • https://etcbt.com/userfiles/file/18038821313.pdfIn PDF document text
  • http://cukorbetegshop.hu/files/89018901440.pdfIn PDF document text
  • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16144e99c41b4a---vowitavup.pdfIn PDF document text
  • http://ghettaetamionarchitetti.it/userfiles/files/kajoduxawogibazokenet.pdfIn PDF document text
  • https://www.benkorner.nl/admin/library/ckfinder/userfiles/files/mitate.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=dream+league+2020+android+offlinePDF 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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