Malicious PDF — malware analysis report

Heuristics 9

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
  Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
• 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.
• QR-code redirect lure medium SE_QR_LURE
  Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
• 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://crysiq.ru/uplcv?utm_term=qr+code+studio+1.0+free+download PDF link annotation

  • http://netcentricnj.com/ckfinder/userfiles/files/roloroxut.pdfIn PDF document text
  • https://studiecarriere.it/uploads/file/88871295673.pdfIn PDF document text
  • https://buyafranchise.org/files/files/37676236860.pdfIn PDF document text
  • http://gradn.ru/uploades/fckeditorfile/17264833901.pdfIn PDF document text
  • https://bnbcostaverde.it/userfiles/file/54151673839.pdfIn PDF document text
  • http://restaurant-lyons.fr/userfiles/file/63276293440.pdfIn PDF document text
  • https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/0293cbe2fa154c45c6610dda2d6b0121/pedabiwexizawen.pdfIn PDF document text
  • http://gesgo.de/userfiles/file/vijepawavikosawovepuk.pdfIn PDF document text
  • http://aesg2edcv.handylover.com/upload/files/muluwen.pdfIn PDF document text
  • http://leebyunghun.kr/new/upload/board/files/buxisiwaruzoradufuru.pdfIn PDF document text
  • http://taxplus.in/images/contentimages/files/48708886271.pdfIn PDF document text
  • http://villapellegrino.it/userfiles/files/sukozofixetebadoxiz.pdfIn PDF document text
  • https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/3897d02d4fa100ddd669cfac76be6bf6/50758205849.pdfIn PDF document text
  • http://pegastelco.com/pictures/files/23880088059.pdfIn PDF document text
  • http://longbeach.ilovepokebar.com/uploads/files/89716062985.pdfIn PDF document text
  • http://kfnmdg.com/upfolder/e/files/20210913180622.pdfIn PDF document text
  • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f23d52d619---likunijoneborotafupovi.pdfIn PDF document text
  • http://carraracucinecomponibilitrapani.it/userfiles/files/81100696129.pdfIn PDF document text
  • http://architettipassarinmarzotto.com/userfiles/files/28889860768.pdfIn PDF document text
  • http://96stone.ru/userfiles/file/52780064061.pdfIn PDF document text
  • https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e770187aa3---wapogejakina.pdfIn PDF document text
  • http://dagmar-e.de/userfiles/file/kenadasifomuxajop.pdfIn PDF document text
  • http://compow.net/ckfinder/userfiles/files/puxobus.pdfIn PDF document text
  • http://mwbright.com/upload_fck/file/2021-9-7/20210907092653448130.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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