Malicious PDF — malware analysis report

Heuristics 8

• 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.
• 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
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• 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://vilenefex.ru/award?keyword=adosphere+3+cahier+pdf PDF link annotation

  • http://fito4ka.xyz/razibobatogefenopamowuwhhp0i.pdfIn PDF document text
  • http://tameenegypt.com/wilujeli1w7w1.pdfIn PDF document text
  • https://cdn.sqhk.co/matikefateri/jWjfgjB/bubble_shooter_online_money.pdfIn PDF document text
  • https://cdn.sqhk.co/towinomer/fs7hjha/71726700505.pdfIn PDF document text
  • http://wrestling-mma.com/call_me_by_your_name_full_movie_free_subtitlesvk2tk.pdfIn PDF document text
  • http://juxowupekabaf.mygamesonline.org/88296345691.pdfIn PDF document text
  • https://cdn.sqhk.co/bepotedaxus/0aHgjIu/start_page_chrome_android.pdfIn PDF document text
  • https://cdn.sqhk.co/tevotapomow/gXjdgeA/68484057130.pdfIn PDF document text
  • http://shothard.site/zujefejazizuniwene2mhch.pdfIn PDF document text
  • http://mamuxorap.getenjoyment.net/40748049054.pdfIn PDF document text
  • http://student-yurist.ru/animal_farm_chapter_4_audiobook2y0of.pdfIn PDF document text
  • http://libuwapuvewipev.mywebcommunity.org/28777590749.pdfIn PDF document text
  • http://www.ascendercorp.com/In PDF document text
  • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
  • https://58eafb2e-ea74-4523-a1b2-d2e0fe9bfe54.filesusr.com/ugd/466fa0_d67d8e4afe2d40d6827295a0024dd3aa.pdf?index=trueIn PDF document text
  • http://kofaxafogi.myartsonline.com/55607428471.pdfIn PDF document text
  • https://18b09f4e-de4d-4c1b-9fe6-be55c63b1c00.filesusr.com/ugd/cd81e9_d766400d3b6b4d689c18af6c406d5a1e.pdf?index=trueIn PDF document text
  • https://ff102949-4c65-4b7b-925c-ea9a98d885fa.filesusr.com/ugd/7a16bb_f0eadc46fc6840c39051dfdc69b212fc.pdf?index=trueIn PDF document text
  • https://c78267de-509c-4cb0-9394-6b21b7876e04.filesusr.com/ugd/290ce3_b894643e2f264057b698eacb41655de5.pdf?index=trueIn PDF document text
  • https://4ef57e19-9a2e-4e6f-a444-f6b59f982a39.filesusr.com/ugd/4c1554_182496160440458c942df8d36d83bd26.pdf?index=trueIn PDF document text
  • https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_5d097582c03b4218aa1a4878d8c8a597.pdf?index=trueIn PDF document text
  • https://e437b920-fa79-41d5-b67c-0ca059f4e77a.filesusr.com/ugd/d97c10_bb926372c63a47ff8499640d3bfb47dc.pdf?index=trueIn PDF document text
  • https://e1cf253b-b3af-4135-a675-1c3c021177f9.filesusr.com/ugd/111c46_c00245416f9447008e0f1128dfc6fca6.pdf?index=trueIn PDF document text
  • https://e5acd528-9925-4355-98ed-6c6122c9c19a.filesusr.com/ugd/49fecd_a9894563dcde48448b23c3cb14ca808c.pdf?index=trueIn PDF document text
  • https://507d1b22-ea03-4061-a262-f79425337ca2.filesusr.com/ugd/a374b9_5ff03947bc5b4385b711205c550e47e2.pdf?index=trueIn PDF document text
  • https://52468903-0e2d-47c5-babb-61e1d305d291.filesusr.com/ugd/32777b_7ac981c858754834a26ce655b0363fe3.pdf?index=trueIn PDF document text
  • https://aabf49e0-5477-4fd2-8456-a986ef8f2a87.filesusr.com/ugd/9e14ca_6827f9681cca4adeb2893783126b207f.pdf?index=trueIn PDF document text
  • https://84bc2af4-305a-40b7-847c-8c52cb6b08d2.filesusr.com/ugd/a2e525_5dbcacb5d48b44ebb794d83864cd0b8b.pdf?index=trueIn PDF document text
  • https://9e28b13d-ef5c-4d18-821e-e071a8932918.filesusr.com/ugd/0b0738_a650b9a2334b4ff5b55b9495572a4283.pdf?index=trueIn 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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