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 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
• Callback phishing phone lure medium SE_CALLBACK_LURE
  Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
• 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://aldaserwis.pl/ckfinder/userfiles/files/22197561449.pdf In PDF document text

  • http://imdad-egypt.com/userfiles/file/74817991148.pdfIn PDF document text
  • http://chiangmai-clean.com/user_img/files/23337455164.pdfIn PDF document text
  • https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/5b2d97a100c2414412931b95dede538c/pejidukubinerolo.pdfIn PDF document text
  • http://www.badischer-kunstverein.de/ckfinder/userfiles/files/migazogawitoropif.pdfIn PDF document text
  • http://bjaimama.com/data/upload/2021/09/file/202109080351532619.pdfIn PDF document text
  • http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/butujilegokepu.pdfIn PDF document text
  • https://mogilew.ru/userfiles/file/28069139248.pdfIn PDF document text
  • http://weorderfood.com/uploads/files/73823475411.pdfIn PDF document text
  • http://www.oneworldkarate.com/fckeditorimages/userfiles/file/xawotegalefem.pdfIn PDF document text
  • http://eternalcycle.com/FCKFiles/file/23994129272.pdfIn PDF document text
  • http://mensagemcrista.com.br/ckfinder/userfiles/files/mikufobozibipusuwogugoped.pdfIn PDF document text
  • http://miraesusan.com/ckupload/files/51397368403.pdfIn PDF document text
  • https://deltaguvenlik.net/userfiles/file/zananekukoboxazomigojamo.pdfIn PDF document text
  • http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/161356a93bfb91---dirivutiwolopon.pdfIn PDF document text
  • https://ekinyalitim.com/depo/sayfaresim/file/45149000385.pdfIn PDF document text
  • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d4dbbc81f6---23142503781.pdfIn PDF document text
  • https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/p9ogqvht8kj1dmru4jfhtpea7p/zetibazumogaritet.pdfIn PDF document text
  • https://kmkmekanik.com/upload/ckfinder/files/mazala.pdfIn PDF document text
  • http://nhadatv.com/webroot/img/files/70278319836.pdfIn PDF document text
  • http://qianshunqs.com/admin/upload/85826950679.pdfIn PDF document text
  • http://cuanhomkinhtoanthang.com/media/file/47324638471.pdfIn PDF document text
  • http://szpitalstrzelin.pl/userfiles/files/tebagakap.pdfIn PDF document text
  • http://ardennes.proximeo.com/ckfinder/userfiles/files/47817719321.pdfIn PDF document text
  • https://tavfelugyelet.megujuloenergiapark.hu/admin/ckfinder/userfiles/files/dovafeselatopogifokiwisiz.pdfIn PDF document text
  • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=radio+fm+android+apkPDF 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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