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 are part of a link farm hosted on disposable or compromised domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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 http://xn--38-mlcqjbufcz6h.xn--p1ai/userfiles/file/15017777817.pdf
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/1af69ddbac248a454413313e8c1ddd4a/35677607008.pdf
- http://pc-driver.ru/userfiles/files/2109428448.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/082bf0a29a84a19a31131f4097b169fb/bikewikoxot.pdf
- http://dorp.pl/userfiles/files/33035532572.pdf
- http://urdu-hadith.com/survey/userfiles/files/wofujisixukusotugagarebak.pdf
- http://to-kajihan.net/js/upload/files/zoxozezukozuwugodoz.pdf
- https://mintedimages.com/ckfinder/userfiles/files/20477793777.pdf
- http://licausi.it/userfiles/files/tevipiwanefuwimobuvor.pdf
- http://infinity-pro.ru/userfiles/file/dilibodirupoju.pdf
- https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/d762c1ecb58ea3f78eff31192ebeac2a/tubexub.pdf
- http://administratieindex.nl/images/uploads/61825234155.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143ebdba9f26---dilironovosidojas.pdf
- https://psg66.ru/admin/ckfinder/userfiles/files/vafunirotekigukedonovi.pdf
- http://architettoannalisatinelli.it/userfiles/files/75726803618.pdf
- http://graczeonline.pl/userfiles/file/54231417854.pdf
- https://duel.pl/userfiles/file/befim.pdf
- http://seattlebestteriyaki.com/uploads/files/99690622999.pdf
- https://daqing-jewelry.com/uploads/files/202109060258041256.pdf
- http://labsshop.com/d/files/4988843449.pdf
- https://hopclickhospitality.com/scgtest/team-explore/uploads/files/26660915653.pdf
- http://franzoesischebulldoggen.eu/userfiles/file/94276849727.pdf
- http://www.sudaff.com/pics/file/74843949746.pdf
- http://xn--2osv9pt2jfpt.com/uploadfiles/files/bodomosefatezikukateror.pdf
- https://euroialinsol.ro/userfiles/file/giriwizonuvapepizopu.pdf
- http://ebsenglish.net/_UploadFile/Images/file/46358162347.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=p5100+firmware+4+files
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d3f2.bin00cf7e2f46b78624357cd31efca8832f49b7b47ed55be0fa0d82ce11bce661ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3F2 | 10528 bytes |
font_01_sfnt_off0000ec18.binf9db141b27d5b3885b2976520ac31a2e8de4482a338da14b68e6948b51e84527 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC18 | 17748 bytes |
font_02_sfnt_off00011a21.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A21 | 16792 bytes |
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