MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of external links, many of which are part of an SEO link farm designed to redirect users to malicious sites. The primary lure appears to be a summary of 'The origin of species', which redirects to the URL 'https://dugedepap.ru/strik?utm_term=the+origin+of+species+conclusion+summary'. This URL is identified as a redirector for phishing purposes. No scripts were extracted, but the structure and heuristics strongly indicate a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://dugedepap.ru/strik?utm_term=the+origin+of+species+conclusion+summary PDF link annotation
- https://static.s123-cdn-static.com/uploads/4492880/normal_60013c3fe0e42.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4481834/normal_6059f06532012.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481988/normal_5fdf78fb8109c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474979/normal_5fd11c0400ad2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374951/normal_60538f254c4b9.pdfIn PDF document text
- http://xorimomupajo.scienceontheweb.net/pugapufop.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4413118/normal_60239d2b792a4.pdfIn PDF document text
- http://xawegap.mywebcommunity.org/how_to_make_a_vr_game_on_unity.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4470679/normal_5fd26b5e9e06f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4488141/normal_6029853992211.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://bexukavibume.myartsonline.com/arya_samaj_vedas.pdfIn PDF document text
- http://litorow.myartsonline.com/folofogox.pdfIn PDF document text
- https://s3.amazonaws.com/kozewuposoridil/love_broken_heart_images.pdfIn PDF document text
- https://aed022ca-8a9d-452d-9022-56a74a585a14.filesusr.com/ugd/4d548e_eb45b093c2c7434db3ba9f96b8d2e8d1.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/damerirazib/madness_combat_sprite_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/zafirawit/combine_data_in_two_excel_worksheets.pdfIn PDF document text
- https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_cc79cbba293347af97d76456b9830a67.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bipepezuwed/rowovaralozenili.pdfIn PDF document text
- https://s3.amazonaws.com/getizar/64541459849.pdfIn PDF document text
- https://s3.amazonaws.com/xopugup/endocarditis_guidelines.pdfIn PDF document text
- https://ab2ac9d4-4772-4872-829d-c19fde0a4f90.filesusr.com/ugd/b919b3_b8f94f4b24da4464857d6d721116d343.pdf?index=trueIn PDF document text
- http://duziroro.myartsonline.com/office_building_design_project.pdfIn PDF document text
- https://s3.amazonaws.com/wegugus/48208722586.pdfIn PDF document text
- https://s3.amazonaws.com/figidireki/briggs_and_stratton_625_series_190cc_fuel_tank.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_off0001e550.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E550 | 5480 bytes |
SHA-256: 1518c8661029fa656c01e3168aa7109f43f35e286b600d72bb2494fdcf237d60 |
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font_01_sfnt_off0001f7db.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F7DB | 11568 bytes |
SHA-256: 2758a43499ef0795379179f28b80a6f8d198585a49b8460834119d4918bb8d33 |
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