MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites acting as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common method for initiating exploits or redirecting users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16073b0b3ae588---81215240251.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160bb64c04f6dc---42863927516.pdf
- http://carnow.jp/js/upload/files/kobabowivasulobuvud.pdf
- http://mtecommerce.it/public/news/file/duxijixukapusesejis.pdf
- http://sskj.pl/userfiles/file/35403020485.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/86tp541gepnalg0ci8muhjbsb0/90991495328.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/160899166a1853---72581465377.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/6m00ksgd30mqt8tsbte4qsu7b7/54748236279.pdf
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/49370850632.pdf
- http://promocode.lu/userfiles/files/fafabutowe.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/160802de9ce024---80298384663.pdf
- https://tantecoccole016.it/file/pabeligig.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607bdcfc05e71---89872154535.pdf
- http://teckim.it/themes/userfiles//files/xasefenamerab.pdf
- https://anthonygillant.com/userfiles/file/bazokivetufomago.pdf
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f450e278d6---vuxudovilagorudex.pdf
- http://emons-verlag.net/testarea/cwsCMSlight/media/files/bawikojar.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fae5b4ef08---75091031062.pdf
- http://0930actress.com/files/files/95418017938.pdf
- http://guides2alpes.fr/uploads/file/81349780353.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608158ac1f58c---pijajobuviv.pdf
- https://viboot.com/ckfinder/userfiles/files/13876257683.pdf
- http://plenaadoracao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160896d4626107---31934236713.pdf
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a48582b5e1---76052237379.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=toefl+exercises+with+answers
- 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_off0000f009.bind58a74f072547a2bd280ba7e77c213a8f22adece23285748d1b83421ddad9120 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF009 | 16948 bytes |
font_01_sfnt_off00011c0a.bin1d05a0274d3af8f29e4a5c93cc3a90a734537e2e96736515274a5a47e78e5072 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C0A | 10584 bytes |
font_02_sfnt_off00013447.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13447 | 16792 bytes |
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