MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a link farm pointing to multiple distinct hosts, some of which are hosted on compromised CMS uploads, indicating a potential phishing or malware distribution scheme. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://emrc.ie/upload/imagecontent/file/vupiji.pdf In PDF document text
- http://bluecars.pl/userfiles/file/44847224532.pdfIn PDF document text
- http://soepcentrale-dekeyser.be/userfiles/file/10832726089.pdfIn PDF document text
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/97941e04b3a658d21af6f14ae2c166b3/gufozefejomafenejunula.pdfIn PDF document text
- https://guapa2.com/admin/fck/file/fewurifarokit.pdfIn PDF document text
- http://hanhthien.net/uploads/file/66153319063.pdfIn PDF document text
- http://martonaroniskola.net/userfiles/file/12667142528.pdfIn PDF document text
- http://www.truca-taoules.com//ckfinder/userfiles/files/finomezenulavizun.pdfIn PDF document text
- http://sequirk.ie/userfiles/file/73826690822.pdfIn PDF document text
- https://thewentworthco.com/wp-content/plugins/super-forms/uploads/php/files/sud0hjpplegba34m6i6i4cgn84/46166330669.pdfIn PDF document text
- https://mauspro.net/upload/files/85717905219.pdfIn PDF document text
- http://fittbike.hu/files/file/davomopupufafuzaposaxelar.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/10cf62b41a293bb4f7d3a372744fb1a9/zuzewigopukugejif.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/sasafinurugugoromoxupapa.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ab6cff869b1---15137617007.pdfIn PDF document text
- http://www.doctor-carpet.com/wp-content/plugins/super-forms/uploads/php/files/j6iaaq2761ngglu70ea9sbm490/27355421990.pdfIn PDF document text
- http://creptiles.dk/userfiles/file/32734629374.pdfIn PDF document text
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/bogbshct0ucgaon3rs8k341e47/babokomomisep.pdfIn PDF document text
- http://peach2560.xyz/js/ckfinder/userfiles/files/77822337583.pdfIn PDF document text
- https://i-chat.tw/js/ckfinder/userfiles/files/mufenigaluvalogepavurok.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/p59dskfgdl61bicb8queosaop2/zotegeberuxoravibupe.pdfIn PDF document text
- http://diegogenna.it/userfiles/files/sedufafatazarikes.pdfIn PDF document text
- http://interno-kazan.ru/upload/files/munerisimutesinaguwizuf.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ff6b6734e---24885133107.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=how+long+does+it+take+for+yodi+pills+to+workPDF link annotation
- 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_off0000f78e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF78E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010fa5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FA5 | 10956 bytes |
SHA-256: 6bafa125328a23f2482b1a91ca742ebe2baa0a54475ac5545ed113806b6131c6 |
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font_02_sfnt_off00012902.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12902 | 17664 bytes |
SHA-256: c2e01983f9a86c6ae4f3550edef7ed8a12d86b4e24e5c7b3b50a47d761439f4d |
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