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 WordPress sites 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 malware distribution. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://laborke.ru/uplcv?utm_term=apk+naruto+shippuden+senki
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/egf60k3cjgetshjato1k1qhiv6/lezotisekoxifitovepep.pdf
- http://abnigakgdsg.friendship-match.com/upload/files/rafisurenuwatukofob.pdf
- http://portalpr-b2b.es/img/user//file/_0374643001631945452.pdf
- http://kancelaria-perfect.pl/app/webroot/media/files/14059095427.pdf
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161487bed95656---71156894775.pdf
- http://technology-mp.it/userfiles/files/9310764364.pdf
- http://keemunblacktea.cn/uploads/file/211344432013.pdf
- http://j-club.eu/userfiles/file/51403866873.pdf
- http://yjeverspeed.com/userfiles/file/42465961073.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd7878e84f---43562109606.pdf
- http://newgoodluckcrane.com/admin/uploadfiles/file/rewabago.pdf
- http://madurastones.com/userfiles/file/kuregezidavudibajeguzede.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1613058cd2ac09---gatinuxitewuz.pdf
- http://kiuruvedenlukio.fi/tiedostot/file/tewalujekijivexemidomi.pdf
- http://sanchariglobal.com/userfiles/file/tejarixudiwerabumixenavu.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/ihl539l01chvogeq3n0p12vr25/gokil.pdf
- https://www.db-ynox.fr/ckfinder/userfiles/files/sipusud.pdf
- http://domadoma.cz/userfiles/file/zekogexisuralax.pdf
- http://24x7taazasamachar.com/assets/ckfinder/core/connector/php/uploads/files/girupa.pdf
- http://icltindia.in/userfiles/file/80026740436.pdf
- https://chachachat.info/js/ckfinder/userfiles/files/18131097624.pdf
- https://ekinyalitim.com/depo/sayfaresim/file/1407501266.pdf
- 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_off0000aee7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEE7 | 16792 bytes |
font_01_sfnt_off0000c6fe.bin28c0692f336b4d19aa21423d482a4e0621789723ddaa9d504890a418ab0d6b62 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC6FE | 10616 bytes |
font_02_sfnt_off0000df41.binee7d24dc02b6f1875904c3f288f476d2460e8a96ad3bab24afdf98f0226371c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF41 | 14628 bytes |
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