MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ClamAV and an ML classifier, with multiple heuristics indicating it functions as a link farm. Several URLs point to compromised WordPress sites or disposable hosting, suggesting an attempt to lure users to malicious or phishing content. The PDF structure itself is indicative of a link farm rather than a legitimate document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://infrive.ru/uplcv?utm_term=lumia+640+xl+android PDF link annotation
- http://cropscipublisher.com/files/upfiles/file/juboxusimudiwuso.pdfIn PDF document text
- http://emanuelarombiarchitetto.eu/userfiles/files/64849089448.pdfIn PDF document text
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/161434ddd0c923---bibaximifip.pdfIn PDF document text
- https://activsport.ro/userfiles/file/likubefutivu.pdfIn PDF document text
- http://www.520amis.com/upload/files/27977275014.pdfIn PDF document text
- https://bizimpin.com/calisma2/files/uploads/lasiwuxurenozat.pdfIn PDF document text
- http://domario.ru/userfiles/file/94260442360.pdfIn PDF document text
- http://paillasse.hu/userfiles/file/92939012747.pdfIn PDF document text
- https://tepatsasaran.com/contents/files/41838369320.pdfIn PDF document text
- https://baptistfriends.org/media/porukutupodim.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161431fb079754---70624639612.pdfIn PDF document text
- http://2rent.gr/userfiles/file/tegomefaronukosesamiget.pdfIn PDF document text
- http://thainightjob.com/ckfinder/userfiles/files/jakefefiwifesorotugiw.pdfIn PDF document text
- http://abwlondonblvd.com/uploads/files/jupogetixexedatupo.pdfIn PDF document text
- https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d99e2d0741---fonikakobogakukenuget.pdfIn PDF document text
- https://total-sport.pl/img/upload/files/lokorenu.pdfIn PDF document text
- https://yenicekentkaplicasi.com/userfiles/file/72720138302.pdfIn PDF document text
- http://talentfuturesservices.com/sharpinstitute/images/files/30734119677.pdfIn PDF document text
- http://bosch-elektronarzedzia.pl/catalog/file/fugidetesojezike.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/2b2c3188ee454c40def0005d4f4efbd5/48844845597.pdfIn PDF document text
- http://vibrosystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c51dee335a---wemixeronuvafakoduraxez.pdfIn PDF document text
- https://samsungdvm.net/upload/ckfinder/files/xevipemogipelulisuv.pdfIn PDF document text
- http://easyhypermarket.com/userfiles/file/gamirowimiko.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_off0000dc93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC93 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f4aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4AA | 10540 bytes |
SHA-256: 5876f8b48d97257bf8b6167d5ef52042d252dc451dbae93a6e08f082351897cd |
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font_02_sfnt_off00010c97.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C97 | 17924 bytes |
SHA-256: e5bc8e59d9170161be31d4590115c999d05e52ff2c13452c930abdade4a61591 |
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