Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• 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.
• 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://nipisod.ru/strik?utm_term=availity+bcbs+prior+authorization+form PDF link annotation

  • https://sukaxivex.weebly.com/uploads/1/3/4/8/134895869/c25b4.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4366989/normal_6062dbdca8bf6.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382196/normal_6067fd1a58519.pdfIn PDF document text
  • https://wubepina.weebly.com/uploads/1/3/4/7/134721378/lomoxebugasomar.pdfIn PDF document text
  • https://pupadidaf.weebly.com/uploads/1/3/0/8/130873798/390770.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4446494/normal_605fff1d2ba06.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4446635/normal_600055e2d5bae.pdfIn PDF document text
  • https://static.s123-cdn-static.com/uploads/4484107/normal_5ff806d2c8742.pdfIn PDF document text
  • https://viropozokuputaj.weebly.com/uploads/1/3/4/4/134441516/sowen.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://uploads.strikinglycdn.com/files/437def7c-adbf-44af-a8b7-3a6042977083/mlive_mod_unlock_all_room_apk.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2e7956d1-c78c-472f-8ba1-e84a0de4fb01/72162038507.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/d65edc7b-1168-4d2b-b332-e8d9c1303c60/vanerepifaguz.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/90f1c4c8-ce03-4394-b7d9-1bc37f830e05/nupimug.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/2c3a24ce-0182-4d6f-82ce-5388672b3662/confucius_analects_gutenberg.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/aa78e47c-1593-4827-bdf1-6ee325685c47/the_magicians_book_vs_show_reddit.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9a0af80c-8ed4-41e8-b5d4-322dfc6cc878/how_to_sync_afterglow_wireless_ps3_controller.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/7d02be42-3dc7-4d49-9053-8c19aae85cb3/what_genre_is_michael_vey.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/556a26c6-7d21-4531-8f85-514f44ab4182/76623910203.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8feea4b4-918a-470a-9837-2b50b8b82afc/belorivenexi.pdfIn PDF document text
  • https://s3.amazonaws.com/zidosozawok/57682952037.pdfIn PDF document text
  • https://s3.amazonaws.com/ratixifo/biceps_stretch_exercises.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/3f1e9f70-b2ce-4c81-92b2-1c973ebae157/terifagazaneborizowe.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://scripts.sil.org/OFLIn PDF document text

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