MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to disposable domains, suggesting a link farm designed to distribute malicious content. The presence of a 'download button' heuristic and ClamAV detection further supports a malicious classification. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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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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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://kuzutuzo.ru/strik?utm_term=hp+officejet+advantage+4500+driver+for+windows+7 PDF link annotation
- http://bcpzonasegurape2-viabcp.com/76475543168wkii3.pdfIn PDF document text
- http://faceit.su/how_to_clean_hotel_jetted_tubwi9kf.pdfIn PDF document text
- http://korecos.ru/paraterididepuniwika4wgk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368505/normal_5fd9760247834.pdfIn PDF document text
- https://cdn.sqhk.co/rafumufo/hbhb9hj/dragon_raja_pc_emulator.pdfIn PDF document text
- https://cdn.sqhk.co/muwanije/gwWYkx7/lolidolorisotunezatub.pdfIn PDF document text
- https://cdn.sqhk.co/mewuxedodi/jNHggZ6/freezero_game_hack_download.pdfIn PDF document text
- http://gosugas.getenjoyment.net/bus_eireann_103.pdfIn PDF document text
- https://cdn.sqhk.co/jinubodilev/76heQii/kowuravuzegizajexobex.pdfIn PDF document text
- https://cdn.sqhk.co/fedelubu/cggIibG/82859219090.pdfIn PDF document text
- https://cdn.sqhk.co/funixatugesi/gdGmagh/areal_velocity_derivation.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4404308/normal_604ed467b2c0a.pdfIn PDF document text
- https://cdn.sqhk.co/pipugisoveku/Kijjdhh/dozomobiniwi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4366399/normal_5fe40dba99749.pdfIn PDF document text
- http://zafikapasipugog.medianewsonline.com/data_structure_and_algorithm_analysis_in_c_weiss.pdfIn PDF document text
- https://cdn.sqhk.co/tabewinudeka/ihhyFSb/space_risk_and_disaster_reduction.pdfIn PDF document text
- http://italysummer.space/what_are_the_most_debated_topicsi0g3s.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://6f4861c6-cdf0-4a5f-ba2d-f9c5e5bfbee6.filesusr.com/ugd/77941b_e354060b07644d1aa9948718f5591423.pdf?index=trueIn PDF document text
- http://vusedew.myartsonline.com/nemejeze.pdfIn PDF document text
- https://5e024257-ca51-40df-b6b5-a3104c7b7124.filesusr.com/ugd/97368a_7d5f60cbf50042d185c45403f8b00fc6.pdf?index=trueIn PDF document text
- https://5e9c932d-19a8-4d5a-a970-d4bc0bcb832b.filesusr.com/ugd/bae0a0_8320041c876244db99268bbde26d1857.pdf?index=trueIn PDF document text
- https://eb9d0a7c-f241-4274-9260-18def620c3fd.filesusr.com/ugd/796b85_992a4d13cdb146569b1d16d95d5a0238.pdf?index=trueIn PDF document text
- https://83f018a0-8e49-44f0-b57e-805e464a5f06.filesusr.com/ugd/10a4aa_edd8447b04d347b6a48a5f63adadff11.pdf?index=trueIn 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_off0000e89b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE89B | 5912 bytes |
SHA-256: f57a4e7c2f50efca7d872279b99ea4e00eae49cd36890fd50979be186b83b60b |
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font_01_sfnt_off0000fd01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD01 | 10620 bytes |
SHA-256: ac4476696ef43b0e10780d7ed6eed88735a08f65b1fff73ebdd2fce4ff9a1b49 |
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