MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms. The presence of numerous unknown URLs suggests a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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 http://tfh-filter.hu/_user/file/31106962256.pdf In PDF document text
- http://denkobarbell.com/_upload/files/foridewesukis.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/35ad2e6f0872680324fddabb08890602/50452109950.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096829637cec---43645761788.pdfIn PDF document text
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/c010f59574556c91ca3a9a07879809bf/gatokupe.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/5a016e807440d6504214d06c84a956a8/33039489150.pdfIn PDF document text
- http://tbff-bygg.se/img/files/33064611222.pdfIn PDF document text
- http://decaiyun.com/upload/file/210714160053722227p8kd7bh30x06.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/e0602c5f5a17c03dffaa26f7641dab17/lajifixevubisorufifiteba.pdfIn PDF document text
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/bcc649d2ddcf48cf82aa09fdafcf77a6/47700976762.pdfIn PDF document text
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/c289e133829b9b7c3b1d30a14b3d0934/jidake.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9285309720---59470861063.pdfIn PDF document text
- https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3d2b31dccf---9256014413.pdfIn PDF document text
- https://fid-data.fr/app/webroot/uploaderfiles/63043881253.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb5b2b9480e---11460248492.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/05f1e0bd69b508ec1802857460afacda/jozirosumivexug.pdfIn PDF document text
- http://myjobcareer.net/userfiles/file/2021060108094373499.pdfIn PDF document text
- http://bebelino.ru/userfiles/file/tawuwezul.pdfIn PDF document text
- http://thebranchoflife.org/clients/3/37/37a84c4c47f147f839b5d5a44bb1b86c/File/94013341093.pdfIn PDF document text
- https://www.djluk.co.uk/wp-content/plugins/super-forms/uploads/php/files/l54g3dc8em8dfdn903gc6pm88c/rovareneditojozogi.pdfIn PDF document text
- https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/015d008ccd38608c03827cf066be549c/wuwududaziri.pdfIn PDF document text
- https://study-go.info/wp-content/plugins/super-forms/uploads/php/files/a04e761c9dd1405b8649c593119d7470/tugitaxapuzu.pdfIn PDF document text
- https://equantumconsulting.com/files/files/99247144177.pdfIn PDF document text
- https://wacee.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a9183ddda0c---jemawufesafor.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/e87b355a4d1ac281e25449616eb4811c/seduvimojiromurin.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=inflating+a+collapsed+lungPDF 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_off00010b18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B18 | 17644 bytes |
SHA-256: ca7388c8de81a4442192b3c64a9c314ed688d3e2eccfbb712cd4778b21943ba3 |
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font_01_sfnt_off00013922.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13922 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15139 | 10744 bytes |
SHA-256: 61553b1cd7ed952513861fa3723f8ff25f1b2aa42207d96e05eb8aa92a97f570 |
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