MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with at least one identified as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool sometimes used to create malicious PDFs. The primary attack pattern involves directing users to external, potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://crophysi.ru/award?keyword=list+of+conjunctions+used+in+english+pdf In PDF document text
- http://vzruvayarttraff.xyz/15238610496w7wgn.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4489724/normal_601b42b0823c0.pdfIn PDF document text
- http://natur-green.fun/tadogaxolagurofogkfs4.pdfIn PDF document text
- http://tegor.xyz/12362181213et3f8.pdfIn PDF document text
- http://orehi-siberian-force.online/links_awakening_turtle_rock_mapby0jh.pdfIn PDF document text
- http://itdiscounts.info/what_is_solar_energy_all_aboutqdg6m.pdfIn PDF document text
- http://helper-badges.com/71609463978oitvt.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4464532/normal_603605f7ebd7f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459624/normal_601d1a223be56.pdfIn PDF document text
- http://batmbatm.ru/where_she_went_endinggg5od.pdfIn PDF document text
- http://waranijovuv.sportsontheweb.net/corporate_accounting_calicut_university_2020_admission.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446289/normal_603846b5ab15c.pdfIn PDF document text
- http://kujinatazema.sportsontheweb.net/free_online_astrology_books.pdfIn PDF document text
- http://vittorguxx.site/mango_street_book_online15yqe.pdfIn PDF document text
- http://xuzerujagojagip.scienceontheweb.net/91531359539.pdfIn PDF document text
- http://life-news.tech/jotabolaxn2f6.pdfIn PDF document text
- http://nasufulorejuwe.mywebcommunity.org/how_long_to_cook_sweet_potatoes_whole.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381347/normal_60159f12003ae.pdfIn PDF document text
- http://rowowevu.mypressonline.com/fs-ia6b_sbus_wiring.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://2a403a33-5f6e-4534-96f9-742aa7325afc.filesusr.com/ugd/d2da83_9a279fbbb8f344b68d7f33a30119edba.pdf?index=trueIn PDF document text
- http://girofili.myartsonline.com/bimokex.pdfIn PDF document text
- http://dezobod.onlinewebshop.net/39767187302.pdfIn PDF document text
- https://5efcf519-4c71-4be9-a00f-e1d47ba804c5.filesusr.com/ugd/ebcc4b_3d494fe6142947438da16464c20b37b0.pdf?index=trueIn PDF document text
- https://9cf93ecd-64ee-4ad6-afcc-f350577a7522.filesusr.com/ugd/c4dbd3_cd9cfcd78b2e45aa99d1bd09ca771f94.pdf?index=trueIn PDF document text
- https://bed1e925-73f7-457c-87ff-53f226988024.filesusr.com/ugd/d4a8ce_65c4e0a7d3464987a2355a7c2027c924.pdf?index=trueIn PDF document text
- https://d12e84a0-9808-45da-82c6-613dfe540d1b.filesusr.com/ugd/dc8a8e_697c438a4ba04fc5a66c4228d04dabed.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_off0000f28f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF28F | 5128 bytes |
SHA-256: 86460674f4a69705206224e3f9b5b7a89049075503eb5eff0b9029877775a3e0 |
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font_01_sfnt_off00010414.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10414 | 10932 bytes |
SHA-256: 57df74096fc5510da5d384eb7afef97c96b7d10e03725aaf65b03dc7dcb17047 |
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