MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a high-risk heuristic firing for a random URL link, indicating malicious intent. The ML classifier and ClamAV detection strongly support this assessment. The embedded JavaScript likely attempts to download and execute a second-stage payload from the linked URL, which is a common technique for malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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 https://nevjegyzek.eu/uploads/file/pasopo.pdf In PDF document text
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/bivhjsgv7f92kk9kth5710gjv7/28841768183.pdfIn PDF document text
- http://elliptical-trainers.ru/ckfinder/userfiles/files/regowiloza.pdfIn PDF document text
- http://dentherapia.hu/files/file/14527374908.pdfIn PDF document text
- http://jjw-led.com/userfiles/file/91342102448.pdfIn PDF document text
- http://swapnakoodu.com/fck_uploads/file/67256419855.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/nebor.pdfIn PDF document text
- http://seoulsquare.com/userfiles/file/28646535952.pdfIn PDF document text
- https://www.tyrtaios.gr/ckfinder/userfiles/files/besojota.pdfIn PDF document text
- http://www.como-grup.ro/fisiere/file/telizijerojiniweredeju.pdfIn PDF document text
- http://kpdb.org/userfiles/files/1773646213.pdfIn PDF document text
- http://gamjagolla.com/uploads/files/60566391387.pdfIn PDF document text
- http://bundoreh.com/fckeditor/files/file/jufupubimoseb.pdfIn PDF document text
- https://xn--80aaa1anac6cg.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b43f94f373c6955b3ac94cebd4757370/60192983402.pdfIn PDF document text
- https://totspotdaynursery.co.uk/ckfinder/userfiles/files/38603689673.pdfIn PDF document text
- https://munis-roquesalbes.cat/demo/vilalba/imatges/file/61463136881.pdfIn PDF document text
- https://chatsystem.site/js/ckfinder/userfiles/files/58171532493.pdfIn PDF document text
- https://livermore.com/wysiwygfiles/file/94614388607.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202109/file/bewibi.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/daganituzimu.pdfIn PDF document text
- https://sausalito.com/wysiwygfiles/file/97276392300.pdfIn PDF document text
- https://napraforgohotel.hu/upload/file/16435169357.pdfIn PDF document text
- https://www.piramideidiomas.com/ckfinder/userfiles/files/70559513808.pdfIn PDF document text
- http://smepil.com/ckeditor/userfiles/files/luvifoxiwusiwi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=getting+more+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_off0000e40b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE40B | 10504 bytes |
SHA-256: 43e067206f21d6cdbba8073745311239be3ebab2589d9f1053130638ff365de7 |
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font_01_sfnt_off0000fba7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBA7 | 17428 bytes |
SHA-256: 456d0ae93f3ccda8b52c156be82d6f22ee5fc8e4015733310a711c4f4ac7f044 |
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font_02_sfnt_off000128d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128D6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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