MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs that point to a variety of websites, many of which appear to be part of a link farm designed to obscure the ultimate destination. Several heuristics indicate that these links are hosted on compromised CMS platforms or disposable hosting, suggesting a malicious intent to distribute phishing content or malware. The ML classifier and ClamAV detection strongly support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://medvor.ru/uplcv?utm_term=smallest+richest+country+in+the+world PDF link annotation
- http://vanharteyoga.nl/uploads/files/95877057703.pdfIn PDF document text
- http://angelcabrera.com/FCKfiles/file/zobin.pdfIn PDF document text
- https://pmapmc.com/userfiles/image/files/81983743789.pdfIn PDF document text
- http://librojuridico.com/aym_images/files/3155485103.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/88850974518.pdfIn PDF document text
- http://jingyitech.com/uploadfile/52373005615.pdfIn PDF document text
- http://chinahongji.com/d/files/70516365224.pdfIn PDF document text
- https://gyn-koe70.de/obrazky/file/vumipabimakunenam.pdfIn PDF document text
- https://darshanam.com/ckfinder/userfiles/files/gidazidositawesodizat.pdfIn PDF document text
- https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/6b33393ff8e17512bd5db41efeacdc8e/tagogutisiji.pdfIn PDF document text
- http://huh.hu/UserFiles/File/23528315661.pdfIn PDF document text
- http://okuninka-biale.pl/userfiles/file/177830711.pdfIn PDF document text
- http://chip-chup.hu/upload/file/70635625452.pdfIn PDF document text
- https://reformedgeneration.com/userfiles/file/nurebu.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/ea9ec82b5755b8d2ae40d7e9881cd8b2/nukafiremogexo.pdfIn PDF document text
- https://serrechevalier-skifun.com/imagesfile/sanetutaxilopitoziz.pdfIn PDF document text
- https://dermatologie-chamonix.com/userfiles/file/gibominigirubotimor.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16132285e15f59---11406271501.pdfIn PDF document text
- http://alpha-cp.com/userfiles/file/92104699323.pdfIn PDF document text
- http://basumati.com/app/webroot/ckfinder/userfiles/files/seletubavorexofefoguru.pdfIn PDF document text
- http://hotelrefah4ter.ir/basefile/hotelrefah4terir/files/dopigusap.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/16139355f83420---wezaxikimimiz.pdfIn PDF document text
- http://capitaldanceacademy.com/userfiles/files/74950610940.pdfIn PDF document text
- http://www.w.radeton.cz/ckfinder/userfiles/files/xeberibukanuxigeduxavu.pdfIn PDF document text
- http://s250801404.onlinehome.fr/img/uploaded/file/farumifiwik.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA9F | 11008 bytes |
SHA-256: 1309a7c97e9179e22afd10f5237fcdd5f6a9ccb585cf7d7e22d6bf65a75888a6 |
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font_01_sfnt_off00011411.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11411 | 18884 bytes |
SHA-256: 2cb9ee9bad68cf40127e2002f5cb6704ed7e94d63b3a9305ad9aeb99e592ec8b |
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font_02_sfnt_off000145f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145F0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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