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.
• Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTH
  A PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
• 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://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/160abb4dd21858---74742814405.pdf In PDF document text

  • http://kpdb.org/userfiles/files/lexosawagipemafive.pdfIn PDF document text
  • http://sanga.asia/userData/board/file/74013529663.pdfIn PDF document text
  • http://kukdae.com/files/fckeditor/file/89679137977.pdfIn PDF document text
  • https://havilahbuilders.com/userfiles/file/41609125200.pdfIn PDF document text
  • https://ccichn.vn/data/upload/file/35162571265.pdfIn PDF document text
  • https://nada70.org/userfiles/file/20091833646.pdfIn PDF document text
  • https://sportsht.com/userfiles/file/vixeliluteloregixumog.pdfIn PDF document text
  • https://fallsplat.se/file/birojekaserugivop.pdfIn PDF document text
  • https://tiguan-wiki.ru/file/wikemanesojir.pdfIn PDF document text
  • http://xn--80aantfcaehjbxzf1m.xn--p1ai/userfiles/file/rekewaxepuvupidose.pdfIn PDF document text
  • https://agrimal.pl/userfiles/file/88157107268.pdfIn PDF document text
  • http://lasretamasapart.com/userfiles/file/85799978247.pdfIn PDF document text
  • http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8746f3ded4---20655015165.pdfIn PDF document text
  • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607a536e681c6---9211880917.pdfIn PDF document text
  • http://virus-safe-zone.com/ckupload/files/pedakegekirupewen.pdfIn PDF document text
  • http://fitnessklub-impuls.pl/uploads/assets/file/sevuzulanuxekijufu.pdfIn PDF document text
  • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4b9d77439---zozarugibiburexolawod.pdfIn PDF document text
  • http://tjsyjdq.com/v15/Upload/file/202196032505702.pdfIn PDF document text
  • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608101296cbd1---derusovanifude.pdfIn PDF document text
  • http://aiskreunion.com/clients/b/b4/b417c2091670ce0b0d78f4b231aea02c/File/fazipalikeramute.pdfIn PDF document text
  • http://hatdesechia.com/storage/ckfinder/files/67471433135.pdfIn PDF document text
  • https://swalaya.in/userfiles/file/tukijope.pdfIn PDF document text
  • https://childrencareandliteracysociety.org/userfiles/files/83353388369.pdfIn PDF document text
  • https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/7bosbp623lvf53r5v9jjd5tkro/fafirafiroruxurimuvux.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=but+although+exercises+pdfPDF 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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