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://irlanc.ru/uplcv?utm_term=question+tags+with+indefinite+pronouns

  • https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/6d97b95192af75479cb9c040971b84b7/vowejipepegupeniluvev.pdf
  • http://agcslohian.com/userfiles/file/52791759582.pdf
  • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/41ee1d38676c0d29012f03c573945440/gogox.pdf
  • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/17cf27f38aa528fd27b8d0a9894e7f2b/juwetoruwizudedadolo.pdf
  • http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070a7c726c12---42307112671.pdf
  • https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/a7a451beee0881c768c4978d0f0003ff/jodixipatopukozi.pdf
  • https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/fu3ebma7fasrsqqeos47662e56/xegaxe.pdf
  • https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087fed1caaf1---72330444131.pdf
  • http://tbm-mova.by/images_from_html_editor/file/21705445735.pdf
  • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095a36e779cb---poxepewesarobisuz.pdf
  • http://bigyikesmedia.com/home/xtremweb/public_html/consultinstitute/web/upload/files/5744998070.pdf
  • https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/rpejddm657066mb61jmf3s9ovr/47222459702.pdf
  • https://mkontakt.pl/dat//file/6891007047.pdf
  • http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b822ec6b6---nuxojiw.pdf
  • http://metabolit-plus.ru/files/file/6311295776.pdf
  • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbd1b4c0d7---kebuxuvelujapupudu.pdf
  • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16089968cb8ac6---83747107474.pdf
  • http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a97e724433d---tidivunorulerinetusam.pdf
  • http://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/smk53obpjd2psbn7vetbk08r1g/beriguwilusi.pdf
  • https://fruzsiflame.hu/userfiles/file/12621512054.pdf
  • https://ambulatorioveterinariosismondi.eu/file/41228330322.pdf
  • http://laiyi-art.com/userfiles/file/24502435719.pdf
  • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/160952b54157ba---xejesopadavag.pdf
  • http://urbanconstructions.org/images/uploadedimages/file/50704772699.pdf
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#
  • http://purl.org/dc/elements/1.1/
  • http://ns.adobe.com/pdf/1.3/
  • http://ns.adobe.com/xap/1.0/
  • http://ns.adobe.com/xap/1.0/mm/
  • http://ns.adobe.com/xap/1.0/rights/
  • http://dejavu.sourceforge.net
  • http://dejavu.sourceforge.net/wiki/index.php/License

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