MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external PDF files hosted on various domains, many of which appear to be compromised WordPress sites or disposable hosting. The primary URL suggests a lure for downloading 'onenote download for windows 7 32 bit', indicating a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 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://inwebjor.ru/uplcv?utm_term=onenote+download+for+windows+7+32+bit PDF link annotation
- http://findusafranchise.com/files/files/16150741884.pdfIn PDF document text
- https://flims.atelierleuthold.ch/userfiles/files/kuruxumodabebag.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/371a3dc42fc26d38094ad50e4a34e44b/tuliba.pdfIn PDF document text
- https://southwestlooms.com/admin/userfiles/files/netopu.pdfIn PDF document text
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/88435508233.pdfIn PDF document text
- https://newsale.linyn.mobi/upload/ckeditor/pages/files/vosebojiwagawax.pdfIn PDF document text
- http://nobody-films.com/bpms/includes/fckeditor_uploads/userfiles/file/xalabavowibejadedup.pdfIn PDF document text
- https://contact-house.com/fckeditor/upload/file/69238408066.pdfIn PDF document text
- http://bioaec.com/userfiles/files/6168541631.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-9-29/20210929063834973386.pdfIn PDF document text
- https://projectmine.hu/ckfinder/userfiles/files/venutinoreluz.pdfIn PDF document text
- http://musorcentrum.around.hu/files/article/file/28036122049.pdfIn PDF document text
- https://bibliotheque.ville.deux-montagnes.qc.ca/ckfinder/userfiles/files/vekedexadapukazi.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/eef2ef55d0073cdb29c0ebd5f2353a28/befusuzezoxomoleliv.pdfIn PDF document text
- https://taumed.kz/upload/2021/10files/211010064646337209d1ip0.pdfIn PDF document text
- http://www.atccs3.it/atccs3/fckeditor/editor/ckfinder/userfiles/files/94619763023.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/16166d4b38a264---jubuvutepunukezixasobosu.pdfIn PDF document text
- http://geteffective.biz/uploadfiles/file/kupokikebakafuwab.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614fab9dc7f7f---62738900837.pdfIn PDF document text
- https://cepatdaftargroup2.com/contents/files/begotirifi.pdfIn PDF document text
- http://stoewebdesign.no/userfiles/file/223742308.pdfIn PDF document text
- http://eko-uklid.com/files/file/18069714313.pdfIn PDF document text
- http://xn--12cfu9bc1efac9a9azfdsb7b9d1f0j.net/ckfinder/userfiles/files/bolewadijerejefozosami.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/2f2fe25f3dfcff8dc99b20fdc75f91fa/zazoxiwefe.pdfIn PDF document text
- https://kebecelectrique.com/upload/editor/file/topexelupumovusonuwis.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://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_off0000e61b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE61B | 17416 bytes |
SHA-256: e3f226509de348eea2640782e18d40e7fee44b4f5978e6379f7ad99bc9303635 |
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font_01_sfnt_off00011231.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11231 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012a48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A48 | 10940 bytes |
SHA-256: 430f68430f26ecaf953882a4632a803c50e2f0141615cede67dffd7c47448b6f |
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