MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing and link farm attack. It contains numerous external links, with a primary redirector pointing to 'https://kuzutuzo.ru/wix?keyword=chemical+formula+worksheet+with+answers+pdf', likely intended to deceive users into downloading further malware. The PDF's structure and the presence of a link farm suggest an attempt to generate traffic and potentially distribute malicious files under the guise of providing educational resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=chemical+formula+worksheet+with+answers+pdf PDF link annotation
- https://s3.amazonaws.com/nodetuxapabara/78653687433.pdfIn PDF document text
- https://s3.amazonaws.com/lebaxa/experimental_ablations_were_first_performed_by.pdfIn PDF document text
- https://kukanoli.weebly.com/uploads/1/3/4/6/134641169/fasopajazebetatu.pdfIn PDF document text
- http://pazifelurup.medianewsonline.com/do_hansel_and_gretel_die_in_the_original_story.pdfIn PDF document text
- http://dedigevobunobe.medianewsonline.com/kipafaxupokiro.pdfIn PDF document text
- http://dokarukaxita.22web.org/suddenly_seventeen_chinese_movie.pdfIn PDF document text
- https://xibowawagapuj.weebly.com/uploads/1/3/1/3/131383975/6196310.pdfIn PDF document text
- https://s3.amazonaws.com/lodazojamuva/19899950882.pdfIn PDF document text
- https://s3.amazonaws.com/tigovatolis/city_of_omaha_human_resources_phone_number.pdfIn PDF document text
- http://tadosuzewamu.medianewsonline.com/76381093594.pdfIn PDF document text
- http://sepoxudozixo.sportsontheweb.net/phenolic_compounds_book.pdfIn PDF document text
- http://moxolesapudeli.22web.org/all_in_one_old_games_apk.pdfIn PDF document text
- https://s3.amazonaws.com/futamo/23306329539.pdfIn PDF document text
- https://s3.amazonaws.com/fejenijovekozu/26756842391.pdfIn PDF document text
- http://vitofemegawe.getenjoyment.net/gersan_cable_tray_catalogue.pdfIn PDF document text
- http://duzixofiwisegi.mygamesonline.org/fuwetupofexumoloro.pdfIn PDF document text
- https://s3.amazonaws.com/zikeko/75713433667.pdfIn PDF document text
- https://s3.amazonaws.com/fizaxo/where_can_you_buy_champion_generators.pdfIn PDF document text
- https://s3.amazonaws.com/lixasifasi/emulator_androgens_apk.pdfIn PDF document text
- https://lekibuwowobaveg.weebly.com/uploads/1/3/5/2/135295955/848792.pdfIn PDF document text
- https://s3.amazonaws.com/juzowilipi/canon_inkjet_ip4500_series_manual.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://binuwuzipu.myartsonline.com/bsc_1_year_chemistry_notes_download.pdfIn PDF document text
- http://kutoxinupuroxo.onlinewebshop.net/arithmetico_geometric_progression.pdfIn PDF document text
- http://sutijipekopavob.rf.gd/bosch_axxis_washer_laundry_detergent.pdfIn PDF document text
- http://teluroluxeterez.myartsonline.com/840997641.pdfIn PDF document text
- http://pevogikuxupeja.onlinewebshop.net/39079499409.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_off0000f21b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF21B | 5456 bytes |
SHA-256: 65a55413ba249f962de692d54b024aead0234bb83dbd7cf70caa44abb9cc405c |
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font_01_sfnt_off0001048c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1048C | 10804 bytes |
SHA-256: c4f4d7013a8b7e6f411bc4fcd334584f1f487de72216c3c0b17dfa736d7283d0 |
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