MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting it functions as a link farm to distribute phishing content or further malware. The presence of external URIs and link farm heuristics strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://coretry.ru/uplcv?utm_term=what+are+the+elements+of+mis
- http://caphegiabao.com/upload/fck/file/fumubexakedowivobepun.pdf
- https://cambodiadriverservice.com/userfiles/file/36508931759.pdf
- https://davidfauquemberg.com/home/fauquemb/david/bbdg_site/userfiles/file/xufarimivefirubagavidosut.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/015a1ef94dd51735ef4ab626c755b072/tanubazojum.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d8050a709a---gotajezirapixaka.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/a6a412c132de5e8620b48bc863dbcaf5/93397089120.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/k1tsuv8qhdjbgkurpg0cdqk6s6/tepawumisop.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b07c3d15aad---20183472618.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/0028641961ab02be78338fe53e723a71/97521416208.pdf
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/16086d2384633b---58876902601.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2213a38edd---47447450240.pdf
- https://razdolle.by/wp-content/plugins/super-forms/uploads/php/files/ghpbejv97353jq09vkbn3pkbb6/87509567824.pdf
- http://lycee-elm.org/userfiles/file/15012778820.pdf
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094928190384---99891044843.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/4679b6f924fc282816806824a7b28256/jesaginu.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/5tpq70va3ijr3spetj4t6l4sk4/62700153249.pdf
- https://atpl.aero/ckfinder/userfiles/files/sozofosisagivesusu.pdf
- https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/36ies4nqmvp0sqspv894eipt26/40478992430.pdf
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/tpe5e1e1c469ac36q25pmlhl82/filipowo.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_off0000f6b6.bina96011c70a5b6db447c36fa0254ccc7ebf162d741e6b2ad21c408c18d1c91c85 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B6 | 10472 bytes |
font_01_sfnt_off00010e52.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E52 | 16792 bytes |
font_02_sfnt_off00012664.bind3dd3a9571b2c70fc9409be7e3da7427bb90efe59f0540e21c8d72d23a541e01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12664 | 19868 bytes |
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