MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, including links to compromised WordPress uploads and a link farm on disposable hosting. These elements suggest the PDF is designed to redirect users to malicious sites, potentially for phishing or to download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9893
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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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://coretry.ru/uplcv?utm_term=what+is+ram+in+android PDF link annotation
- http://fc-junajted.com/upload/datoteke/mufinutajekogupisuru.pdfIn PDF document text
- https://flavio-tonon.it/public/file/48961570734.pdfIn PDF document text
- https://balarampurblock.in/ckfinder/userfiles/files/redijipo.pdfIn PDF document text
- https://extremedriveline.com/ckfinder/userfiles/files/zivubimejogaxelazubu.pdfIn PDF document text
- https://dananeye.com/uploads/files/202109161758259300.pdfIn PDF document text
- http://theprofitnesstrainers.com/userfiles/file/4465201152.pdfIn PDF document text
- http://arohitourandtravels.com/userfiles/file/bofolofog.pdfIn PDF document text
- http://delve-cr.com/uploads/ketatuguzu.pdfIn PDF document text
- https://bishopsalamatkhokhar.org/userfiles/file/relobabetotexetutalumupot.pdfIn PDF document text
- http://chip-chup.hu/upload/file/toratoriturulaga.pdfIn PDF document text
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c778cc7cca---24638271721.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/7tap0voubhjort4nbe52k17el1/67386049402.pdfIn PDF document text
- http://geobigoni.it/userfiles/files/mumawex.pdfIn PDF document text
- https://prokoncept.hu/admin/blogfck/image/file/nupetevilenotixufan.pdfIn PDF document text
- http://volvo-cars.jp/js/upload/files/56776674299.pdfIn PDF document text
- https://dwitunggaljaya.com/sitefiles/file/vixotu.pdfIn PDF document text
- http://weiken-rc.com/upload/files/lizivimuxek.pdfIn PDF document text
- http://aisne.proximeo.com/ckfinder/userfiles/files/13432331280.pdfIn PDF document text
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/98023125e1ab7653988235773932762a/refakogura.pdfIn PDF document text
- http://gdlejia.com/uploadfile/files/20210918_104627.pdfIn PDF document text
- http://lulanjina.net/upload/files/66364991141.pdfIn PDF document text
- https://rux-thai.com/ckfinder/userfiles/files/38430452744.pdfIn PDF document text
- http://hyunshin.net/userfiles/file/605835298.pdfIn PDF document text
- http://dayou.tw/uploadpic/files/202109050442575718.pdfIn PDF document text
- https://cylinder96.ru/admin/ckfinder/userfiles/files/41594339756.pdfIn PDF document text
- http://otohondamientay.com/upload/files/jibibasiwanetulixexemovud.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_off0000b0d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0D9 | 10328 bytes |
SHA-256: 0e7d049cc40627c2b63bd56051fd6633a5c23cfce39e1d5531eb67e3630eae90 |
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font_01_sfnt_off0000c7f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7F2 | 15812 bytes |
SHA-256: ed40e5035705891ef0e781b8d2f22fbf7894915d4c1a3d40ccff1f07630c7bda |
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font_02_sfnt_off0000f051.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF051 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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