MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links, one of which, 'https://yafferge.ru/strik?utm_term=what+causes+hard+dry+patches+of+skin', is flagged as a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to skin conditions. The presence of numerous links on disposable hosting and the ML classifier's high confidence score indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
Heuristics 5
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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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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://yafferge.ru/strik?utm_term=what+causes+hard+dry+patches+of+skin In PDF document text
- https://cdn-cms.f-static.net/uploads/4418000/normal_604d916b0e234.pdfIn PDF document text
- http://jevebolutu.iblogger.org/66734912205.pdfIn PDF document text
- http://likedizar.medianewsonline.com/85909734090.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405907/normal_602b35c7e5cd9.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366399/normal_5fc6067f40443.pdfIn PDF document text
- http://zilitimo.getenjoyment.net/xapojida.pdfIn PDF document text
- http://wegaturagifo.getenjoyment.net/the_history_of_literary_criticism.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462056/normal_600d66d1842ac.pdfIn PDF document text
- http://neriwor.medianewsonline.com/what_is_particular_specifications.pdfIn PDF document text
- http://lumolowopixu.iblogger.org/sailor_moon_manga_en_espaol_completo.pdfIn PDF document text
- http://zejirejajedudu.getenjoyment.net/lotoridusutirezarutuwame.pdfIn PDF document text
- http://ninuwekevap.scienceontheweb.net/19992200437.pdfIn PDF document text
- http://worelimupuvefam.mywebcommunity.org/the_crown_season_1_cast.pdfIn PDF document text
- http://xirijapip.mypressonline.com/68514017330.pdfIn PDF document text
- http://nesebonuvobeju.getenjoyment.net/acetaminophen_davis_plus.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/eb934aaa-59fb-45f9-aef7-3d637e04343e/18048422864.pdfIn PDF document text
- https://6200e599-3f2f-4e3e-ab45-e6977ed7e777.filesusr.com/ugd/f8de3e_6685339fd9a54eedbcd4543ab8c872d2.pdf?index=trueIn PDF document text
- https://0aed7b51-d02b-4864-a6bb-b478bb809667.filesusr.com/ugd/fbdaab_3e4ea543fc08414f8a0717544867a54f.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/752f4136-ab58-4105-ab4d-c36859c67a6b/how_do_you_change_the_battery_in_a_hunter_douglas_pebble_remote.pdfIn PDF document text
- http://vakorizu.epizy.com/6405201641.pdfIn PDF document text
- https://3dcfbd4a-ef33-49dc-a04a-0aaf5307c30d.filesusr.com/ugd/b47706_5b41e0e3b7eb4fc8a6e040a22e13bf58.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/9b89e3f3-67e6-489f-8b72-d1c6bbcbf248/samuburi.pdfIn PDF document text
- https://43a2ba88-5de9-465b-b95f-6a4d82f2d06e.filesusr.com/ugd/dcbeda_9b76bbae400741a58c9f2b467db3face.pdf?index=trueIn PDF document text
- http://lutepotazor.onlinewebshop.net/microplastic_pollutants_book.pdfIn PDF document text
- http://xepolowamozuxan.rf.gd/vumowipegegorolazo.pdfIn PDF document text
- http://rotikozezusigis.rf.gd/dyson_vacuum_user_manual.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f45e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF45E | 5272 bytes |
SHA-256: 0e231df9d071dcd48ff0ba2b998e00f2ad243b46b905a450355e2f62d4f4dfc7 |
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font_01_sfnt_off0001064e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1064E | 10792 bytes |
SHA-256: f8070441fb246fd28a9b7dbb0733419c8b8f37ff2b6854b3a9f8cf221f38f9d1 |
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font_02_sfnt_off00012af3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AF3 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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