MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of external URIs and link farm characteristics indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://chcial.ru/uplcv?utm_term=yes+or+no+questions+examples+with+answers
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160746216ae060---41686919774.pdf
- http://kaithompson.com/userfiles/file/95273811739.pdf
- https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/14a393b563a9346801922b97dc4b92b2/54679262832.pdf
- http://adabaskimerkezi.com/upload/file/loratofo.pdf
- https://petek.biz/resimler/files/niwodomis.pdf
- http://dentherapia.hu/files/file/timusowetozigazafewapikig.pdf
- https://gradeagroup.com/wp-content/plugins/super-forms/uploads/php/files/kdqtsq47dvatgejv6o1pevb1d5/zenixinoniruvuvet.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/df5c35569fcf169c745e6b3de42a40fc/depadobapabuxewadebiri.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/en0bljppf4n3frdfdhdhk35c3c/54927058274.pdf
- http://benevolo.it/userfiles/files/motupezilekarogukazipen.pdf
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c43afce224---bodinijesupeponed.pdf
- https://nam.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c40968ee2f0---8032229410.pdf
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080e1be70abd---48573142378.pdf
- http://bangkoksolarpower.com/syner_upload/images/files/41974057982.pdf
- https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/2lj667st2cvfsauf5532na7lb0/47361494010.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16075daa5b163d---43897794074.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/191968f7052c3f67925adbadc995c75a/65692915378.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c2827c137d---50907598125.pdf
- https://patc.fr/imagesfile/1235149817.pdf
- https://empylean.com/wp-content/plugins/super-forms/uploads/php/files/ja9l0s4sg3fhhjpag3de5k73ot/kuputaxegoze.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/f8d5b86d7712236bf96e11831bf3bd5b/xeribelokidovutinafux.pdf
- http://shssailors1969.com/clients/3/36/366f78b21138e0f8005dfe6cc5e09e30/File/83655819859.pdf
- http://technocom.pl/editor/file/28033457847.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b75cca5b396---rasumufasokumokis.pdf
- http://thaoduocvn.com/userfiles/image/file/26746074844.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_off0000f372.bind8ccf617845ab5827b03119f0f683732038c455af9d69bdbbca4e1a61ab987a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF372 | 18984 bytes |
font_01_sfnt_off00012455.bin642912c0cc9132e70422c6fc73522ffa2a26588b45dd0a8fae52a7445e032aa2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12455 | 10932 bytes |
font_02_sfnt_off00013d81.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D81 | 16792 bytes |
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