MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://queure.ru/uplcv?utm_term=headway+pre+intermediate+fourth+edition+pdf PDF link annotation
- https://www.natursany.com/ckfinder/userfiles/files/3643524965.pdfIn PDF document text
- https://monamifrance.com/FileData/ckfinder/files/20210907_B5D577C2E42C581E.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f341086cb0---93786574872.pdfIn PDF document text
- https://www.truck-transport.com/ckfinder/userfiles/files/30775122089.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/4747507977.pdfIn PDF document text
- https://micsys.in/userfiles/file/bodutilexokimuwavidola.pdfIn PDF document text
- http://www.masozilina.sk/ckfinder/userfiles/files/sigaveluxopuriw.pdfIn PDF document text
- https://etravelbox.com/scgtest/team-explore/uploads/files/30464177660.pdfIn PDF document text
- http://getrade.net/uploadfiles/file/43070157951.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.com/upload/files/sepuxe.pdfIn PDF document text
- https://parfumzone.ro/files/file/90961508770.pdfIn PDF document text
- http://hnc2.com/userfiles/file/74293626264.pdfIn PDF document text
- https://iqmuseum.mn/uploads/files/nakorexafosotusulubekaba.pdfIn PDF document text
- https://mariapolis.net/ckfinder/userfiles/files/13165699647.pdfIn PDF document text
- https://maggievanostrand.com/uploads/media/file/sinerixupofozada.pdfIn PDF document text
- https://sieuviet.net/webroot/img/files/31331111814.pdfIn PDF document text
- http://proallprint.com/userfiles/files/58484356131.pdfIn PDF document text
- http://jedzenie365.pl/ckfinder/userfiles/files/10030735999.pdfIn PDF document text
- http://studioambienteterritorio.it/userfiles/files/77217034562.pdfIn PDF document text
- https://paeonia.ch/userfiles/files/kidopijov.pdfIn PDF document text
- http://hattingtoemrerogsnedker.dk/userfiles/file/povifa.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ade855535d---kokavakidupetamifo.pdfIn PDF document text
- https://anakmeong.com/contents/files/netunujosidasaderewi.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/eaeb177fd98190fca2662294e7f94710/medanigalukesutesabofate.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/e599feafe1bf31c0fcd690d073be1705/novonebanavisolit.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_off0000e7b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE7B0 | 19076 bytes |
SHA-256: 48d6cd54c60fe64d6b175fe787266668de1fd5146a6c31f1123b33376c8c0379 |
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font_01_sfnt_off000119ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119EA | 10840 bytes |
SHA-256: 1128ee438b69a056de36f7977397b334bdf5826ec353d055b0b39f497f375785 |
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font_02_sfnt_off000132b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x132B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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