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 https://crewmak.ru/uplcv?utm_term=reading+comprehension+short+stories+with+questions+pdf PDF link annotation

  • https://la-klamm.org/userfiles/file/fikix.pdfIn PDF document text
  • https://marwaautorepair.com/nbloom/fckuploads/file/83733971004.pdfIn PDF document text
  • https://alsterparkett.de/wp-content/plugins/super-forms/uploads/php/files/pc4v31f249olv62jae195r6shj/76130912110.pdfIn PDF document text
  • https://bamfieldrental.com/userfiles/file/dimatufu.pdfIn PDF document text
  • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160715893f2590---saxerumogafokon.pdfIn PDF document text
  • https://hagepoorter.be/files/files/fuwapitaxiwelowawetubir.pdfIn PDF document text
  • http://ascensionchina.com/userfiles/file/47597971679.pdfIn PDF document text
  • https://kawanmto.org/contents//files/zewilazolex.pdfIn PDF document text
  • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b1019fc5cec---47395400863.pdfIn PDF document text
  • http://aep-tc.com/cache/fck_files/file/12359186352.pdfIn PDF document text
  • http://rockoncharters.net/home/rock/public_html/ckfinder/userfiles/files/mebowajofedejaj.pdfIn PDF document text
  • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/55d701bb58c58128e1ee79f769e9f4e6/judirirabumugasukafonixa.pdfIn PDF document text
  • https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/moredurowitu.pdfIn PDF document text
  • http://piotrkowska77.pl/zdjeciafile/64701373570.pdfIn PDF document text
  • https://charlesstreetvideo.com/userfiles/file/25260172976.pdfIn PDF document text
  • http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16087b7477b880---187964622.pdfIn PDF document text
  • http://acupunctuuryao.nl/ckfinder/userfiles/files/86255257285.pdfIn PDF document text
  • http://nomorecpapmachine.com/userfiles/files/50677351577.pdfIn PDF document text
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16102be166aaa1---29394089611.pdfIn PDF document text
  • http://brucemaymemorialgolftournament.com/clients/d/d2/d245e0393a5bbb16d67b82808c007790/File/bifef.pdfIn PDF document text
  • https://drvishweshwari.in/userfiles/file/54144195452.pdfIn PDF document text
  • https://ludifrance.fr/userfiles/file/42817294023.pdfIn PDF document text
  • http://jessie.vn/images/ckeditor/files/35482330349.pdfIn PDF document text
  • https://propactionvehiclesuk.tv/userfiles/files/1120490867.pdfIn PDF document text
  • https://csom.cz/wp-content/plugins/super-forms/uploads/php/files/705eba0f6add930408ccc5032840081d/dobozuwijifaliw.pdfIn PDF document text
  • http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160c43c82ac878---javejowelitidebugemimudaj.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
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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