MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised or disposable hosting. The heuristics indicate a link farm designed to redirect users, likely as part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 7
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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 link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://archism.ru/uplcv?utm_term=psone+emulator+for+android PDF link annotation
- https://classoft.ro/userfiles/file/26680445939.pdfIn PDF document text
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/danorapurevika.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16146e2583fd70---dinoraboxenor.pdfIn PDF document text
- https://dawnraytech.985.tw/data/file/userfiles/files/79358386822.pdfIn PDF document text
- https://nilsahost.com/calisma2/files/uploads/66110844243.pdfIn PDF document text
- http://kocavietnam.com/upload/files/vutakozoze.pdfIn PDF document text
- https://www.jakketoes.be/ckfinder/userfiles/files/moxosomotejeforufisazux.pdfIn PDF document text
- https://12tiga.com/contents/files/zegekej.pdfIn PDF document text
- https://shreenatharcade.com/userfiles/file/92201001703.pdfIn PDF document text
- https://cr2tek.com/userfiles/Proj_Name/files/gupoxelose.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/6kuj6dnrmtr6rf4puao3bbtr24/16412722337.pdfIn PDF document text
- https://drosamahetta.com/userfiles/file/14384146990.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1613478da894d0---zixanidatotekisubum.pdfIn PDF document text
- http://vimar.ua/userfiles/files/limomexaxezomiler.pdfIn PDF document text
- https://rubenoferro.com/userfiles/file/lewomatudazagaxovusapumib.pdfIn PDF document text
- http://yuqiaohome.com/uploads/files/202109181714321110.pdfIn PDF document text
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613fc9893b6b1---noxuvigevuwi.pdfIn PDF document text
- http://lor-rostov.su/userfiles/files/17935626271.pdfIn PDF document text
- http://cudicio.it/images/file/45152908721.pdfIn PDF document text
- http://backkwang.com/userData/board/file/73496378026.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/tigawazovobapadi.pdfIn PDF document text
- https://ocw.tw/uploads/files/42391944649.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b11d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB11D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c92f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC92F | 15440 bytes |
SHA-256: e6d5892878c93b11adddd8b92587bd69ade6f9885d9e874782d862e31ed30aab |
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font_02_sfnt_off0000f04c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04C | 10616 bytes |
SHA-256: 0537519f4cb5d136556950ddba88e4ef3eb9c6b2027b40524dfd2da1e666d8c7 |
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