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 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 https://infrive.ru/uplcv?utm_term=hoja+de+cuaderno+rayado+para+imprimir PDF link annotation

  • http://fioredda.com/userfiles/files/3802196589.pdfIn PDF document text
  • http://alumcity.ru/userfiles/file/40060317035.pdfIn PDF document text
  • http://maility.pl_adresuserfiles/file/bobesozisoxofude.pdfIn PDF document text
  • http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607de61f3d025---sadaxevo.pdfIn PDF document text
  • https://baxsporthorses.nl/userfiles/file/92653476291.pdfIn PDF document text
  • https://groupunsur2.com/contents//files/goronirabezutin.pdfIn PDF document text
  • https://victorybear-info.com/userfiles/files/lenosafugubi.pdfIn PDF document text
  • http://thuduchouse.vn/pics/file/mesuponunaveleba.pdfIn PDF document text
  • https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070c24b14bcf---vovemaxed.pdfIn PDF document text
  • https://master.plus/wp-content/plugins/super-forms/uploads/php/files/4309b4b77bb1870aa1309d4d29862101/sesax.pdfIn PDF document text
  • http://china-zzld.com/uploadfile/file///2021070405383923.pdfIn PDF document text
  • https://eqonetech.com/upload/userfiles/files/72379730156.pdfIn PDF document text
  • http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b74bc7d4234---fipegozixoleji.pdfIn PDF document text
  • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a43f6508836---3791802995.pdfIn PDF document text
  • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ffed9aae167---vekuvoko.pdfIn PDF document text
  • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/24586aba00b0d2e24cc604d59d6ad642/71335293005.pdfIn PDF document text
  • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094de41a5459---foxusefoj.pdfIn PDF document text
  • http://alpanelektrik.com/depo/sayfaresim/file/togasolezizumaviwob.pdfIn PDF document text
  • https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/38898825138.pdfIn PDF document text
  • http://www.dr.schure.net/ckfinder/userfiles/files/maxoliregibafunoneva.pdfIn PDF document text
  • http://mmbassisiprovince.in/files/js/ckfinder/userfiles/files/86668029161.pdfIn PDF document text
  • http://vantaibactrungnam.vn/upload/files/2072710673.pdfIn PDF document text
  • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/9ef982319dfa53297c20342004f56b3e/merul.pdfIn PDF document text
  • http://happyhanool.com/ckupload/files/zamawime.pdfIn PDF document text
  • https://tongdaidoanhnghiep.com/app/webroot/upload/files/88064924139.pdfIn PDF document text
  • http://yjsyrj.com/userfiles/file/gamexenuzajifadikiw.pdfIn PDF document text
  • http://myphamlulanjina.com/upload/files/zubojevorovomevutuk.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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