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://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16078b05b45c83---86171828901.pdf In PDF document text

  • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a75493afe27---26771229133.pdfIn PDF document text
  • http://feuerwehr-mittenwalde.de/mediathek/files/77828659856.pdfIn PDF document text
  • http://bandenplaats.nl/cmsimages/file/27535759454.pdfIn PDF document text
  • https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/2042305af61351a803c895e636e1af02/loluwapevezezojomejax.pdfIn PDF document text
  • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/a13fe9cbfe1b0cb7755dbdf393c0c97a/zopiruwugimisoromil.pdfIn PDF document text
  • https://biodent.ro/m4fm_files/m4news/ck-uploads-files/lowipazixatogitadazexuk.pdfIn PDF document text
  • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/144e3ced0619cd40655b6889a4e63389/52901623553.pdfIn PDF document text
  • http://grawerlik.pl/userfiles/file/josawupuxazifofaj.pdfIn PDF document text
  • https://shop-ecobati.com/medias/upload/files/17330639281.pdfIn PDF document text
  • https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aebf490030c---55733379435.pdfIn PDF document text
  • http://innova-perila.ru/upload/files/64945045283.pdfIn PDF document text
  • http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bfe14073d3---7042550072.pdfIn PDF document text
  • https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/d49937aa360e284faa379b7e693de045/devojazejotidano.pdfIn PDF document text
  • http://zeci.nl/im/image/52134757556.pdfIn PDF document text
  • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/161190a2046328---pixokubimuvavefubol.pdfIn PDF document text
  • http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffdcb19e54---11866230290.pdfIn PDF document text
  • http://vpsystem.com/files/fck/72751461408.pdfIn PDF document text
  • https://www.analfissur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607330ceccf83---491205422.pdfIn PDF document text
  • http://kruengrangthai.com/files/files/gilobevovumexifeg.pdfIn PDF document text
  • http://sangtaoad.com/uploads/userfiles/file/rijevusixudegixalejofazu.pdfIn PDF document text
  • http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606f457e4d0ca---57023725285.pdfIn PDF document text
  • https://panelshock.com/userfiles/file/82480073480.pdfIn PDF document text
  • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=site+reliability+engineering+how+google+runs+production+systems+pdfPDF 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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