MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, with a critical heuristic flagging a link farm and an SEO redirector. The primary malicious URL identified is https://zajinet.ru/123?utm_term=acr+rheumatoid+arthritis+guideline, which is likely used to redirect users to a phishing or malware site. ClamAV also detected this file as Pdf.Phishing.Trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://zajinet.ru/123?utm_term=acr+rheumatoid+arthritis+guideline PDF link annotation
- https://fiviwadixuxenel.weebly.com/uploads/1/3/4/8/134854304/3f0c7c86828.pdfIn PDF document text
- https://jufasoxoko.weebly.com/uploads/1/3/5/3/135315704/8282692.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486765/normal_6008de6b8d067.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408987/normal_604a7ed72fb09.pdfIn PDF document text
- https://mebotorafegamor.weebly.com/uploads/1/3/0/7/130739377/6363043.pdfIn PDF document text
- https://wovinimupilof.weebly.com/uploads/1/3/1/4/131453577/9a811.pdfIn PDF document text
- https://dukalafaziwemum.weebly.com/uploads/1/3/4/7/134772398/b1ef55ae54d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/wamatasamegu/military_contribution_to_climate_change.pdfIn PDF document text
- https://s3.amazonaws.com/mikibetiv/anime_stars_fighting_apk.pdfIn PDF document text
- https://s3.amazonaws.com/besafefaf/sakunivepajupufeverir.pdfIn PDF document text
- https://s3.amazonaws.com/tonemakopinibem/nordictrack_elite_1000_treadmill_review_costco.pdfIn PDF document text
- https://s3.amazonaws.com/pusolefosex/5653253774.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fddc5fe9-1ed4-4587-aec6-8aba2874284d/garp_frm_exam_pass_rate.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/081c1361-5ee1-4bee-8b02-71334f1bd5b9/miloxupoliner.pdfIn PDF document text
- https://s3.amazonaws.com/tugafebip/the_selection_chapter_16_summary.pdfIn PDF document text
- https://s3.amazonaws.com/tuzamada/92050636637.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dcf50710-6a76-451d-8537-6e55615d6870/how_to_make_money_on_onlyfans_selling_feet_pics.pdfIn PDF document text
- https://s3.amazonaws.com/mefadedosuw/cleveland_cavaliers_uniform_logo.pdfIn PDF document text
- https://s3.amazonaws.com/baposivarabuj/god_of_war_ps4_trophies_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f7b222d6-31ef-48d0-8832-bb92dff19ed3/grammar_in_theory_of_computation_ppt.pdfIn PDF document text
- https://s3.amazonaws.com/ritoma/53308480349.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/534f9939-e4f3-4350-9d42-be84a3617473/triethylamine_must_be_used_in_the_fume_hood.pdfIn PDF document text
- https://s3.amazonaws.com/fevobelijogal/how_to_get_rid_of_hydrogen_peroxide_smell.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_off0000e04e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE04E | 5340 bytes |
SHA-256: 7131ee9d1f05dc16994d5a42bd9048d5a0e984b8ede84b601ab40c2c4cbef2aa |
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font_01_sfnt_off0000f24d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF24D | 10620 bytes |
SHA-256: 0bbf85c1e4380c9cb109befed9f6acbc630b89b18ea906e4c53eed4df7a24d70 |
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