MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised websites, suggesting a phishing or malware distribution scheme. The presence of a link farm on disposable hosting and compromised CMS upload storage indicates an attempt to obscure the true malicious destination. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9780
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://drafthe.ru/uplcv?utm_term=sims+4+expansion+descargar
- http://asijskepotraviny.cz/files/file/bofividotekorogoz.pdf
- http://goldenpoolandsauna.com/user_img/files/rilanabakupiwexarelodav.pdf
- http://arniestribu.com/campannas/file/63566301632.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160965970271c2---33767089380.pdf
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/hqgpvsff692onhra3p7m12ou9j/wepodunas.pdf
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/16071eb0de0194---25369765178.pdf
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c13ea374439---57928691094.pdf
- https://comobrew.com/newsite/images/user_uploads/file/14953478287.pdf
- http://alkanboya.com/files/file///rurasovoputivafizidixixum.pdf
- http://aquatrustfina.com/userfiles/file/patedojo.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/ed80bd82bc7577b2b39d48687a75592f/rurusuzukigi.pdf
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/6e4a88675eeca66e8b4d6dc4c86a7a10/35169262055.pdf
- http://maxbrio.kr/files/files/jugasuzuvuwumuvotoviliku.pdf
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/silhouo0anra7hf7ndcohkni12/7360704277.pdf
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16087236228234---87213929956.pdf
- https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/0c4f59d022e2851d09e694b8baf187cf/paxowuvogegulorumesu.pdf
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc784c74f5---wutufasaluroxoliri.pdf
- https://picinterior.com/ckfinder/userfiles/files/xekinakipofukizit.pdf
- https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/2d8f076531aca0b46ca5a22fa354c159/vizorimiroguxezorozitali.pdf
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607b36bf87b0a---sexufuve.pdf
- https://mudrun.com/home/mud/public_html/ckfinder/userfiles/files/56051861133.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/0c48a3abca9859c39713bcd3946ba6e3/37464057646.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/b29c36280b639f76c4a70af143a2160f/19076404006.pdf
- https://klcmekatronik.com/ckfinder/userfiles/files/48648435209.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160accd7907768---39599689587.pdf
- http://www.celso.org/download/vakimesuwezuzabi.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db6c.bin74cacedc3bea76fc12d2102360f13c7b3efa88f6ec9f5de4dc72141797fb73df |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB6C | 10968 bytes |
font_01_sfnt_off0000f49b.bin47b3c42150b77a9b63b02fefd0d29d662123308405488c5ea617aa1ed6bbbf7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF49B | 1952 bytes |
font_02_sfnt_off0000fd76.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD76 | 16792 bytes |
font_03_sfnt_off00011588.bin23aebb6a67a9fef34d1b6fbd49b8d510feb9f6dd53c5cafa29709727de0aa656 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11588 | 18328 bytes |
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