MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous embedded URLs, many of which point to external PDF files hosted on various domains, suggesting a link farm or redirection mechanism. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the phishing lure interpretation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 5
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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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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://www.heksan.com.pl/file/zerojifumujuzuruge.pdf In PDF document text
- http://anhuifan.com/upload_fck/file/2021-9-5/20210905181000203408.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161335db19e594---bimukimibut.pdfIn PDF document text
- http://bamor.org/userfiles/file/kerat.pdfIn PDF document text
- http://canadanur.com/resimler/files/zoliremagixolazo.pdfIn PDF document text
- http://myhomeinparis.com/userfiles/files/93552386323.pdfIn PDF document text
- http://serramentisiciliano.it/userfiles/files/nodejijuvufofose.pdfIn PDF document text
- http://doo-san.com/userfiles/file/20210905180319.pdfIn PDF document text
- https://intersat.lv/files/file/moxalanoxipiwivowo.pdfIn PDF document text
- http://globalsublimation.net/uploadfile/files/koguruvojojipu.pdfIn PDF document text
- https://lacgl.org/upload/editor/file/53135471729.pdfIn PDF document text
- https://koltoztetes-szallitas-lomtalanitas.excore.hu/ckfinder/userfiles/files/wuxevifak.pdfIn PDF document text
- http://aprt1day.ru/file/40466068426.pdfIn PDF document text
- http://loveperfectionschool.com/upload/file/ridopimitizoxi.pdfIn PDF document text
- https://aynadakikemalizm.com/resimler/files/47280243428.pdfIn PDF document text
- https://yukkumpulgroup1.com/contents/files/81670045299.pdfIn PDF document text
- https://amigo-shop.105h.net/upload/files/nuzezezorokusur.pdfIn PDF document text
- http://vertracapital.com/uploads/files/63906876493.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/aaf40b06a31c2b05f570bd7e90193865/vemazis.pdfIn PDF document text
- http://agilesolutions.in/uploads/49647737782.pdfIn PDF document text
- http://studio5r.com/userfiles/files/podoxulusadogupexiw.pdfIn PDF document text
- https://bloc-immo.com/images/78216466272.pdfIn PDF document text
- http://svazekobciorlice.cz/userfiles/file/niwusavovimowulene.pdfIn PDF document text
- http://luxlustry.ru/img/upload/1472654767.pdfIn PDF document text
- http://planao.com/ckfinder/userfiles/files/2656080891.pdfIn PDF document text
- https://theshamrockpublecco.it/file/2006849065.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+change+lock+screen+background+androidPDF 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_off0000d73c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD73C | 17692 bytes |
SHA-256: 0e45a98153f8b92f2abc87be28ce90373f85524bb7ed85039a21ff57d0c15fcc |
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font_01_sfnt_off000104b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B0 | 11060 bytes |
SHA-256: 84b8fb59836d5fb9ea3b932fb6dbd84337928538d447506da64b76536b754248 |
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font_02_sfnt_off00011e33.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E33 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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