Malware Insights
The PDF file contains numerous external links, a common tactic for SEO spam or phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' indicate a large number of links hosted on disposable domains. The embedded URL 'https://kuzutuzo.ru/wix?keyword=star+trek+encyclopedia+revised+and+expanded+edition+pdf' suggests a lure related to a specific book title, likely to attract unsuspecting users. Although no scripts were explicitly extracted, the presence of external links and the ML classification strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://kuzutuzo.ru/wix?keyword=star+trek+encyclopedia+revised+and+expanded+edition+pdf PDF link annotation
- https://cdn.sqhk.co/bibobovezave/aoGWhij/pelamigobosima.pdfIn PDF document text
- https://cdn.sqhk.co/nigulavax/hdjhjix/25075650911.pdfIn PDF document text
- https://gukapubukon.weebly.com/uploads/1/3/4/1/134108909/952521.pdfIn PDF document text
- https://fidenuta.weebly.com/uploads/1/3/1/4/131454859/5922399.pdfIn PDF document text
- https://cdn.sqhk.co/wezufunin/hjKkjd9/smart_cycle_blaze_speed_stem.pdfIn PDF document text
- https://cdn.sqhk.co/pinofizulag/kE0B6ji/self_management_skills.pdfIn PDF document text
- https://cdn.sqhk.co/rapovixovuti/0jigeig/17190324245.pdfIn PDF document text
- https://kitenogoxaginup.weebly.com/uploads/1/3/5/2/135298643/f514c3a.pdfIn PDF document text
- http://samoe-samaya.ru/why_is_the_timer_light_blinking_on_my_panasonic_air_conditionerkamvq.pdfIn PDF document text
- http://lighterusb24.site/zavuvukepuwivuko3q5g4.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/e6679bf4-3eee-498a-93dd-5cf6952cbde6/67928395918.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/96cb0817-d34b-43b1-a3f9-2e994388bd4a/zejazafovutasudujekil.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1aa92a73-4466-4b3d-bb4e-4ff25bf84009/new_american_cuisine_cookbook.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0d63aadb-f5ea-43f3-818e-4428505dbfed/ancient_greek_art_ks2_facts.pdfIn PDF document text
- https://63d876aa-455f-4c41-9c38-50747f3e0b95.filesusr.com/ugd/a220d5_f57aa76c89c645a1987110e98dc79062.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/5fcd80dd-5bd6-4741-8e91-dbc76fef2c79/do_any_oreck_vacuums_have_attachments.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/43744ebf-fa4b-419b-8cda-aeb079f1a7f9/63003827611.pdfIn PDF document text
- https://c140f178-ee45-427e-91fe-a3c5f821f67e.filesusr.com/ugd/ebc5f9_1f22e4e2eafe4c22aef7300e13226105.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cf2f7c3d-86e5-43d3-a408-c5230f06ceca/hp_1320_driver_for_windows_10_64_bit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa69dc62-8bcb-4d93-9d86-fe9364adf14c/sbi_clerk_2014_question_paper_with_answers.pdfIn PDF document text
- https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_5d018058bc7640c7ac4621f6cee561d2.pdf?index=trueIn PDF document text
- https://6f8cb219-4830-455d-9ced-b55e65700e85.filesusr.com/ugd/fd30ac_bb60542373fb4309807b73d679d8e485.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6cec12d0-2dc0-4063-b578-d8ac0e90a1d4/2002_lexus_es300_battery_walmart.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dc91615c-cbf7-462a-be2d-160a2b9c9559/xisuladadonisimeb.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f8aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8AA | 5548 bytes |
SHA-256: 72fff9c50ea91210bde25a478deed51a52b8f5d7d8ff80bbedca1a01ee8a4564 |
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font_01_sfnt_off00010bb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BB1 | 11104 bytes |
SHA-256: 39b7355ff0181f1962d7aafc69fc94ca072d65bd4cec55c8c85c7d16f625c73b |
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