MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which are identified as malicious redirectors or part of a link farm. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM strongly indicate malicious intent. The ML classifier also flagged this PDF with high confidence. The embedded URLs suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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 links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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://crophysi.ru/wb?keyword=definicion%20de%20organizacion%20segun%20autores%20pdf In PDF document text
- https://pudijeda.weebly.com/uploads/1/3/4/5/134586696/depufelop.pdfIn PDF document text
- http://verifedform.com/apuntes_examen_acceso_abogaciaw05h7.pdfIn PDF document text
- http://helplnstagramcontact6088757.com/fruit_ninja_classic_apk_free_download8vvmv.pdfIn PDF document text
- https://muneberixiloza.weebly.com/uploads/1/3/4/3/134339704/38fb04405b.pdfIn PDF document text
- https://rajilogibakew.weebly.com/uploads/1/3/5/3/135326989/6adeb2ada397e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4408721/normal_5fe0a9114fe4c.pdfIn PDF document text
- http://homiak.fun/beetroot_planting_guideolatu.pdfIn PDF document text
- http://fruits-summer.fun/financiere_de_l_odet_annual_report_2017xlksx.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366620/normal_5fd77d49cd1f3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369331/normal_5ff7759c6f98d.pdfIn PDF document text
- http://triple-doska5.club/70125119935d4gkv.pdfIn PDF document text
- http://aduo5.online/timed_addition_worksheets_for_2nd_gradevjp4i.pdfIn PDF document text
- http://videohost.space/899565410693onlp.pdfIn PDF document text
- https://tajuzoliv.weebly.com/uploads/1/3/4/3/134359899/xisulupiwe_gonorujedotajox.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476135/normal_600db2d342335.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/dudurat/46792690595.pdfIn PDF document text
- https://s3.amazonaws.com/pusolefosex/avon_brochure_january_2019_philippines.pdfIn PDF document text
- https://s3.amazonaws.com/sukobogixe/bapomewofimevirewi.pdfIn PDF document text
- https://s3.amazonaws.com/folexapurilowe/adenitis_mesenterica_aguda.pdfIn PDF document text
- https://s3.amazonaws.com/galinikagopit/rofozixijowagenijareze.pdfIn PDF document text
- https://s3.amazonaws.com/sezewu/piloronububuzeko.pdfIn PDF document text
- 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://scripts.sil.org/OFLIn 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_off0000e6ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6AB | 5340 bytes |
SHA-256: 0c9027e0c586746f57843589701b286e578179cc0eab38ea9fdedce951ec9404 |
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font_01_sfnt_off0000f8f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8F8 | 11600 bytes |
SHA-256: da5f6fc864f27f47e1bd012ba1a9b8d90d633fc50182823a8792defa13399902 |
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font_02_sfnt_off00011ee9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EE9 | 16204 bytes |
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
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