MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to disposable domains, many of which are part of a link farm designed to redirect users. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading further malware. The presence of a 'download button' heuristic further supports this phishing-like lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9994
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 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://jacksth.ru/strik?utm_term=cloud+9+origin PDF link annotation
- http://xizerunax.scienceontheweb.net/54441941915.pdfIn PDF document text
- http://mufinofol.scienceontheweb.net/convexity_of_a_bond.pdfIn PDF document text
- http://zavulibalox.mypressonline.com/73580244833.pdfIn PDF document text
- http://mugukix.mygamesonline.org/ver_pelcula_completa_en_espaol_los_hermanos_karamazov_youtube.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478438/normal_601ad31f7d626.pdfIn PDF document text
- http://bukupiduge.mypressonline.com/pengertian_liberalisme.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384468/normal_604dcee7111be.pdfIn PDF document text
- http://pusapev.scienceontheweb.net/27960834118.pdfIn PDF document text
- http://dumubemajizukov.medianewsonline.com/66522984252.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4501989/normal_5fccb9767a4a1.pdfIn PDF document text
- http://rivepozepuxar.mywebcommunity.org/ews_certificate_format.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446490/normal_6059af50712e6.pdfIn PDF document text
- http://mevukavotidu.getenjoyment.net/calendario_de_vacinacao_2020.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://lumosaneja.onlinewebshop.net/the_easy_5_ingredient_ketogenic_diet_cookbook.pdfIn PDF document text
- http://tipatanakuke.onlinewebshop.net/71951688773.pdfIn PDF document text
- https://3bcdeb60-9876-4d14-bc0a-1dd1632c647c.filesusr.com/ugd/16a96a_d73e0f9276784f2f808dad7165d9ac1d.pdf?index=trueIn PDF document text
- https://e02212b7-c8ec-4bf5-ba3e-d68a1de675e0.filesusr.com/ugd/7f1d73_2db726fdd09d4d09ad66b12cf9c98e21.pdf?index=trueIn PDF document text
- https://3d5b2cfc-74f5-4c02-8466-0d369b02955c.filesusr.com/ugd/69b86f_4a659933b0994594b919b1df11a77654.pdf?index=trueIn PDF document text
- http://xobibaga.myartsonline.com/heteroside_cardiotonique.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0ced6d17-8800-406d-965a-46ee06920e11/game_of_thrones_book_series_review.pdfIn PDF document text
- http://merapenerabari.myartsonline.com/sasejof.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df8fab1a-3efe-4085-832c-d96982bc9f2f/4618354309.pdfIn PDF document text
- http://paguxesij.myartsonline.com/gasenopu.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_off0000f30c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF30C | 62212 bytes |
SHA-256: 7e1cada9daa42cc28a5050d44e5281fc3b5d926b1a3b5d745047abf0fae42c10 |
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font_01_sfnt_off0001aef7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1AEF7 | 4668 bytes |
SHA-256: 0a6c9130de49710c8210c700b868bb64947e856652e45d7a0d592f1f04d63499 |
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font_02_sfnt_off0001bee1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1BEE1 | 11552 bytes |
SHA-256: 8c798f3f0f89d86aaa111613fb79d1347acaa90bc57a37dc169b1ac3c9bfe5d8 |
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