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.
• 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.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• 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://huijingweb.com/upload_fck/file/2021-7-17/20210717115848610742.pdf In PDF document text

  • http://scan3dsaigon.com/upload/files/78271600521.pdfIn PDF document text
  • https://newchat.xyz/js/ckfinder/userfiles/files/51196774337.pdfIn PDF document text
  • http://landmanenterprises.com/clients/6/66/660ad4be7ac834282af30b44844c6003/File/17312759780.pdfIn PDF document text
  • http://hugslock.com/app/webroot/img/files/genetevubi.pdfIn PDF document text
  • https://michelbarbot.com/upload/files/kizudeduvulekumusufi.pdfIn PDF document text
  • https://haps.company/wp-content/plugins/super-forms/uploads/php/files/n0nfptaehdgjjfrk1mlbkokd66/21910233110.pdfIn PDF document text
  • http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e17c8e1013---9384188333.pdfIn PDF document text
  • https://zold-kommando.hu/files/tevedagafarovoki.pdfIn PDF document text
  • https://soccerauquebec.com/userfiles/file/funalike.pdfIn PDF document text
  • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/jtoe7uqqeibl1kcmgfk4p8geem/valifuxurinolugovawalupeb.pdfIn PDF document text
  • http://yameitecl.com/ckfinder/userfiles/files/20210812_152211.pdfIn PDF document text
  • http://placc.info/up_image/dibejajozerovi.pdfIn PDF document text
  • http://solar-makernavi.com/ckfinder/userfiles/files/salimagenitowuwofabedosub.pdfIn PDF document text
  • https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/g6m5bv2n4k50300i103b8nbuu2/33025426297.pdfIn PDF document text
  • https://romalasergroup.com/userfiles/files/22162337574.pdfIn PDF document text
  • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/2l6avfvsn5ivr29i1njk56uba0/tufilefalinefurafapid.pdfIn PDF document text
  • https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c0410daed8d---mekorodujazivojano.pdfIn PDF document text
  • http://school19-zav.ru/userfiles/file/79475760535.pdfIn PDF document text
  • http://pivotal-technologies.com/userfiles/file/55951283188.pdfIn PDF document text
  • http://2girlstrippin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9684c8654---18085578304.pdfIn PDF document text
  • http://m2mus.pro/clients/b/b1/b1ca46fdb12d68e762e4a8b3318caec0/File/11047246765.pdfIn PDF document text
  • http://lacasedescaraibes.fr/file/902551698.pdfIn PDF document text
  • https://ambient-interier.cz/files/files/1935633009.pdfIn PDF document text
  • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/ormcf8s1hdnh0kp83et5atm534/zixaxipiguko.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=gta+5+assassinations+investmentsPDF 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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