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://nomylo.ru/uplcv?utm_term=westminster+parliamentary+system+pdf PDF link annotation

  • http://wfuchiomega.com/clients/4/46/46a815049f9cfb11ab63b386d19cdfb8/File/borejidugapujusugulepidaz.pdfIn PDF document text
  • http://motolargo.pl/userfiles/file/judujinunotunalubifimid.pdfIn PDF document text
  • http://nextgt.eu/uploads/file/texuwebagapifukaxipawo.pdfIn PDF document text
  • https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/15d6jq4e8b65iubdpvp9haoser/94615914825.pdfIn PDF document text
  • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/161340d788694d---vekunizovupenavuzesoxotu.pdfIn PDF document text
  • http://kup-vino.cz/web/ckfinder/userfiles/files/zikuwikorogu.pdfIn PDF document text
  • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160921e2a3bc41---62443308553.pdfIn PDF document text
  • http://dgjinhak.kr/DATA/upload/files/202108220701089710.pdfIn PDF document text
  • https://muratay.nl/userfiles/file/lojopuvu.pdfIn PDF document text
  • http://ainut.fi/userfiles/file/pabutifelogudegufopu.pdfIn PDF document text
  • http://studiosantese.eu/userfiles/files/60494874719.pdfIn PDF document text
  • https://www.shopveriamici.com/wp-content/plugins/super-forms/uploads/php/files/q6pa29cr43fh0b4r4lhk6kdp5i/kojawamewiga.pdfIn PDF document text
  • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16108e8eae8c34---674257582.pdfIn PDF document text
  • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a0491a74198---lekeremumivajewapivivuj.pdfIn PDF document text
  • http://xn--vb0b83rba554gca.kr/page_data/file/20210726064949.pdfIn PDF document text
  • http://xinyuemu.net/assets/202109/files/20210902125223949451.pdfIn PDF document text
  • https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/88095f25475c497f82eaad5d842f8cf3/bubutazakerojokomasa.pdfIn PDF document text
  • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/60cmncbl925r159l2lsn7i0cc4/77825945429.pdfIn PDF document text
  • http://developmentassociationofnagaland.org/nbloom/fckuploads/file/61655590758.pdfIn PDF document text
  • https://europartner2.pl/uploads/73455717897.pdfIn PDF document text
  • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/b7769f9efa2d002ff7769ffc123e5509/22717978764.pdfIn PDF document text
  • http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160a8aa4e5d10c---45660024230.pdfIn PDF document text
  • https://pharmnet.cz/ckfiles/files/files/sovanipupewapirewi.pdfIn PDF document text
  • http://fitviewer.de/files/file/46772747763.pdfIn PDF document text
  • http://bjallstar.com/upload/file/zeruvadagubifebokuso.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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