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 CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or initiating redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://queure.ru/uplcv?utm_term=play+store+open+in+chrome PDF link annotation
- https://gamepinleri.com/calisma2/files/uploads/siwadoxadarorujufom.pdfIn PDF document text
- http://www.amedna.com/userfiles/files/nepilalamobidukoliwokinus.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161414bf7ba063---13500837111.pdfIn PDF document text
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/1f042118ac670e2532d296c4dc7c27a3/mitovivedes.pdfIn PDF document text
- http://ues-rb.ru/themes/ues-rb.ru/files/debelij.pdfIn PDF document text
- http://clear-es.net/yamituki-n/uploads/files/48717383204.pdfIn PDF document text
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1614114f3b4b46---71872424612.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109140125454645.pdfIn PDF document text
- http://lawyermo.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/78552379158.pdfIn PDF document text
- https://editions-tlp.fr/ckfinder/userfiles/files/16496476489.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/161410e4101cc4---tabaperepi.pdfIn PDF document text
- http://park-seversk.ru/other/js/ckfinder/userfiles/files/75166196384.pdfIn PDF document text
- http://uekekb.ru/!upload/files/91137304660.pdfIn PDF document text
- http://kd-council.com/upfile/files/86691897313.pdfIn PDF document text
- http://broadgatecapital.com/userfiles/file/tebalurekinopeguza.pdfIn PDF document text
- https://mancomunidadvaldizarbe.com/userfiles/files/gepozab.pdfIn PDF document text
- https://osikovo.eu/webroot/img/content/files/25477924106.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/u9rsvqdd9q7t1ib3qv26j4jvq3/51162551879.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/lewobusun.pdfIn PDF document text
- http://labradory.pl/file/mesexuroba.pdfIn PDF document text
- http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/4533487836.pdfIn PDF document text
- http://saharun.org/uploads/ckfinder/userfiles/files/pigokije.pdfIn PDF document text
- https://adikkedua.com/contents/files/sikesuxage.pdfIn PDF document text
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/e4826cf3f9c6382ae330d8e8db220a34/bibepila.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_off0000c614.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC614 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000de2b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE2B | 10752 bytes |
SHA-256: fb432377c9d6998cba32d294aa8c9690aea7172780992704a10db98df332dece |
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font_02_sfnt_off0000f6c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6C4 | 16900 bytes |
SHA-256: 9d52d035df9ca3df07b2df9649e5459893b15f6b13061bbc02df8d297fca7983 |
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