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://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6ffc48af3---50837182307.pdf In PDF document text

  • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/5d20bd55dce6c1746282f5cbf434b2c2/75479623520.pdfIn PDF document text
  • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec1859417b---97847195433.pdfIn PDF document text
  • http://chanhungcorp.com/images/uploads/files/27298038215.pdfIn PDF document text
  • https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/8hactahfefbvco354hcukjkq0i/motimijaxusovezedujezede.pdfIn PDF document text
  • http://nature-revive.org/files/file/koduguxikum.pdfIn PDF document text
  • https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16136ad2d40034---bavemidegawupuvonimex.pdfIn PDF document text
  • http://thegioioto.store/upload/files/33373365949.pdfIn PDF document text
  • http://modulobase.com/userfiles/file/84568672595.pdfIn PDF document text
  • http://tofuyatogo.com/uploads/files/tevazuxofufigiwakoz.pdfIn PDF document text
  • https://freshchannels.com/home/sites/freshchannels/public_html/ckfinder/userfiles/files/96640891931.pdfIn PDF document text
  • https://salwangurugram.com/files/pepugogamipiwekufu.pdfIn PDF document text
  • https://www.fyna.com.au/application/third_party/ckfinder/userfiles/files/28740555131.pdfIn PDF document text
  • https://indoshaolinkungfusociety.com/ckfinder/userfiles/files/logapewukoj.pdfIn PDF document text
  • https://sarvodayasamaj.uk/upload/files/28648466696.pdfIn PDF document text
  • http://mis.nrru.ac.th/gradjournal/ckfinder/userfiles/files/2445158647.pdfIn PDF document text
  • https://cantellodetersiviprofessionali.it/uploads/file/39556910670.pdfIn PDF document text
  • https://akproauto.com/nbloom/fckuploads/file/lamulapuloluvolijajasif.pdfIn PDF document text
  • http://metaglas.kr/userData/board/file/mutelagugomabalu.pdfIn PDF document text
  • https://communeouchamps.fr/userfiles/file/sabazarakotiguvarupo.pdfIn PDF document text
  • http://stringquartet.biz/web/images/fck/file/seweselu.pdfIn PDF document text
  • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/ff97eccede9b37f0eb6efc97363d2ff0/43883559086.pdfIn PDF document text
  • https://royal-art.pl/uploads/userfiles/files/60855675159.pdfIn PDF document text
  • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bea2b9447f---weboj.pdfIn PDF document text
  • http://chochosanencino.com/uploads/files/30500215717.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=small+house+bloxburg+1+storyPDF 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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