Malicious PDF — malware analysis report

Heuristics 8

• 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.
• LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
  Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
• 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://allytemp.ru/uplcv?utm_term=how+to+view+deleted+call+history+on+android PDF link annotation

  • https://eastmanllc.com/ckfinder/userfiles/files/palobabam.pdfIn PDF document text
  • https://footballsod.com/images/ck-uploads/files/niwibutepe.pdfIn PDF document text
  • http://jiehuist.com/userfiles/files/barip.pdfIn PDF document text
  • http://imosa.asia/uploads/files/202109141437559239.pdfIn PDF document text
  • https://olivierdaulte.com/ckfinder/userfiles/files/67682572510.pdfIn PDF document text
  • http://drironcat.com/images/file/rivotonev.pdfIn PDF document text
  • https://topclassgardening.nl/images/file/90313324484.pdfIn PDF document text
  • http://www.ktgroup.co.uk/ckfinder/userfiles/files/62682618978.pdfIn PDF document text
  • http://kartinatv.org/uploads/files/47572813633.pdfIn PDF document text
  • http://studiotecnicodambra.eu/userfiles/files/tuwibonafit.pdfIn PDF document text
  • https://felicityokolo.com/file/lafamojubisasu.pdfIn PDF document text
  • http://profesniprukaz.cz/ckfinder/userfiles/files/87114017267.pdfIn PDF document text
  • http://chuaphucluong.com/uploads/image/files/mabamejovudatilab.pdfIn PDF document text
  • http://charmingcurls.se/upload/file/24926870334.pdfIn PDF document text
  • http://xn--knstlerische-biografie-arbeit-lbd.ch/userfiles/files/demezexavupilepavim.pdfIn PDF document text
  • https://happyfun.tw/uploads/files/202109012117559446.pdfIn macro / runtime command snippet
  • https://arte-salon.ru/upload_picture/80787193815.pdfIn PDF document text
  • https://delta-relay.be/userfiles/file/jepozatakapera.pdfIn PDF document text
  • http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/14636760378.pdfIn PDF document text
  • http://oilspecchem.com/files/solejetuv.pdfIn PDF document text
  • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161329e45a89ba---nonokedo.pdfIn PDF document text
  • http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f7bc917b7d---fagupuguxabowu.pdfIn PDF document text
  • https://nvsrolko.org/ckfinder/userfiles/files/3194882586.pdfIn PDF document text
  • http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/dfcf474b5e1eda26a4348aa414228881/bogesubamakamekamolit.pdfIn PDF document text
  • http://bluecreator.biz/ckfinder/userfiles/files/wasalelepopojuwajix.pdfIn PDF document text
  • http://mylodge-naoshima.com/images/blog/file/14484220536.pdfIn PDF document text
  • http://xn--knstlerischeIn macro / runtime command snippet
  • 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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