MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or are part of a link farm hosted on disposable domains. The primary attack pattern appears to be directing users to potentially malicious or SEO-manipulated websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/881d187f0b22468d4062b779dbb5747b/jaluzagutoson.pdf In PDF document text
- http://foto-klub.dk/userfiles/file/moridiwinoponuxi.pdfIn PDF document text
- https://artofsurfing.com/preview/ckfinder/userfiles/files/jexotesudijifu.pdfIn PDF document text
- http://goldenpeak.it/userfiles/files/17416147031.pdfIn PDF document text
- https://banghenails.com/upload/file/kagekesavebaz.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608b0f2bbddeb---85403113513.pdfIn PDF document text
- http://themetamorphoseprogram.com/userfiles/file/xeguboxotusev.pdfIn PDF document text
- http://sjar-tech.com/uploadfile/file///2021052212211289.pdfIn PDF document text
- https://www.capitalroofingct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e6bf8ded7---zasabebuxolikititutekadu.pdfIn PDF document text
- https://excore.hu/ckfinder/userfiles/files/fedijuluzip.pdfIn PDF document text
- https://www.ideaklinik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf36f683a9---lutunifuviwesonuz.pdfIn PDF document text
- https://floresdeserrezuela.com/aym_image/files/86874681573.pdfIn PDF document text
- http://norrlandet.se/userfiles/file/pugivulutivosu.pdfIn PDF document text
- http://bjallstar.com/upload/file/64654052336.pdfIn PDF document text
- https://aldapa.eus/files/galeria/files/fulewubedoxeguleketiwo.pdfIn PDF document text
- http://namngonviet.vn/user-/files/33942214887.pdfIn PDF document text
- https://arizonapoolcontractor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8d792b8ac---kukotorojowuzone.pdfIn PDF document text
- http://abbuffalowings.com/uploads/files/jejasuk.pdfIn PDF document text
- https://at1-turbo-j3t.com/contents//files/sufivoser.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160f07dc570906---69203546479.pdfIn PDF document text
- http://10glazsikeyrosa.ru/file/9304887548.pdfIn PDF document text
- http://akkoryazilim.com/userfiles/file/63806684862.pdfIn PDF document text
- http://diplomat2014.ru/ckfinder/userfiles/files/sifovidemupo.pdfIn PDF document text
- http://naucseto.cz/storage/sagabemedefelitox.pdfIn PDF document text
- http://barcabianca.eu/upload/file/judinodutikoki.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=business+law+1st+year+book+pdfPDF 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_off0000ea0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA0F | 11128 bytes |
SHA-256: b8f5286a471faf76e12fd778596aba910a6394d0fd69dd1bb94b34b6ed1c97c0 |
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font_01_sfnt_off0001041f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1041F | 19360 bytes |
SHA-256: 78e3a6bb343b77b79d2910c910a4474059276ffb7f7dbef7345f39013c0f5e40 |
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font_02_sfnt_off0001362b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1362B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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