MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier, exhibiting characteristics of a link farm. The PDF contains numerous embedded URLs, many of which point to other PDF files hosted on various domains, suggesting a phishing or malware distribution scheme. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to obscure the true malicious intent by using many distinct, potentially disposable hosts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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.donboscovizag.org/images/files/69366281746.pdf In PDF document text
- http://atmaircenter.com/lb/userfiles/files/gefipovokaxi.pdfIn PDF document text
- http://lamekatus.com/uploads/ckeditor/files/17371758568.pdfIn PDF document text
- https://soroptimist.be/oldsite/intranet/ckeditor/ckfinder/userfiles/images/files/80844580469.pdfIn PDF document text
- http://malabarisproducoes.com/arquivos/files/mizekepulalobosama.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/16137aff735558---ketovebetadexa.pdfIn PDF document text
- https://computerzone.pk/file/betekowat.pdfIn PDF document text
- http://5mal4.de/moneyvidya/web/images/userfiles/file/10257817847.pdfIn PDF document text
- http://tsrmmessina.it/userfiles/files/88761137277.pdfIn PDF document text
- http://udaybharat.in/ckfinder/userfiles/files/45056875764.pdfIn PDF document text
- http://iphysiology.ru/upload/budifefovidak.pdfIn PDF document text
- http://gndpta.eu/news_objects/files/31826017680.pdfIn PDF document text
- https://kurishupally.org/userfiles/file/7873756494.pdfIn PDF document text
- https://camping-du-lac-dijon.com/userfiles/fichiers/xeluxogitiruro.pdfIn PDF document text
- http://ghinelliarchitettura.it/userfiles/files/36357195730.pdfIn PDF document text
- http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/387f51c14be958afb31188fd95a3ba7e/79935862660.pdfIn PDF document text
- https://schmitz.cz/res/file/jupavedalowavodaraxula.pdfIn PDF document text
- https://www.tzounakos-insurance.gr/ckfinder/userfiles/files/raxalowuzubunifiberisuta.pdfIn PDF document text
- http://yoshitomo-kokubunji.com/jcfiles/file/poxonujajidifekavizusipor.pdfIn PDF document text
- http://sung1.com/upload/files/99819852475.pdfIn PDF document text
- http://cke.hk/userfiles/17388813540.pdfIn PDF document text
- http://enricobarraco.com/files/jawijazivuvidevumunurofik.pdfIn PDF document text
- http://carbontuning.ru/file/jinez.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=winnie+the+pooh+ebook+free+download+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_off0000d423.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD423 | 17496 bytes |
SHA-256: 77153e8f663a45f3e81c51d1026e05903d6dc948024ee7996c157364f86d8885 |
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font_01_sfnt_off00010132.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10132 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011949.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11949 | 10740 bytes |
SHA-256: d67982e1cc87bf0fac508afbf4d1ca8c60a17bd2404145ca39f62bc016e6da90 |
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