MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple heuristic firings indicating it is a link farm on disposable hosting, with one high-severity rule pointing to an algorithmically-generated URL. ClamAV also detected it as a phishing trojan. The embedded URLs suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 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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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://saaretravel.ee/images/file/zuzojopobazexojofige.pdf In PDF document text
- http://nj-rshb.com/v15/Upload/file/20219141414356385.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613175cecc535---lavale.pdfIn PDF document text
- http://homelife-superstars.com/image/files/sivifuxexapajumogaruwudo.pdfIn PDF document text
- http://yizhu580.com/ckfinder/userfiles/files/nejumivusu.pdfIn PDF document text
- https://santehsevast.ru/userfiles/files/fowakagob.pdfIn PDF document text
- https://vsetinrally.cz/userfiles/file/88443011613.pdfIn PDF document text
- http://kalmi.ru/upfiles/files/familixudovati.pdfIn PDF document text
- http://gongin.humenia.com/upload/userfiles/2021/09/files/210903102439.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/70314385877.pdfIn PDF document text
- https://bmw-zona.ru/uploads/file/45123784321.pdfIn PDF document text
- http://ambulatorioveterinariocigliano.com/userfiles/files/wuwufumevuwemima.pdfIn PDF document text
- http://rickgrisolia.com/userfiles/files/73886970192.pdfIn PDF document text
- http://dezmaster.com/userfiles/file/47845935213.pdfIn PDF document text
- https://ls-machinery.com/uploadpic/files/202109122032462448.pdfIn PDF document text
- http://dinobajka.pl/Upload/file/96980485378.pdfIn PDF document text
- http://jr.ac.th/ckfinder/userfiles/files/vavarubanuza.pdfIn PDF document text
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/9b8f7eaeea9ad08fbedf0c61d9c880d8/woliribokikigemujufezov.pdfIn PDF document text
- https://oreopay57.com/ckfinder/userfiles/files/5009762969.pdfIn PDF document text
- https://pointswestliving.com/ckfinder/userfiles/files/nusaraximudalino.pdfIn PDF document text
- https://norservis.info/files/files/kavet.pdfIn PDF document text
- https://www.carnesvarejo.com.br/assets/ckfinder/core/connector/php/uploads/files/34384637936.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=castle+crush+hack+android+1PDF 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_off0000d921.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD921 | 10744 bytes |
SHA-256: 57c02a9dc75e189aceb56a0ca17f24612f956b8e6c1fa6187851fec6bd84060e |
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font_01_sfnt_off0000f1cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1CC | 17200 bytes |
SHA-256: 5d3c77b5df04e70a8c56161ef29621aa98ad137d02bcaa4b6b57cfbfa145cbc8 |
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font_02_sfnt_off00011e45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E45 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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