MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many of which point to other PDFs hosted on compromised or disposable domains. This behavior is characteristic of a link farm designed to obscure the ultimate malicious destination or to distribute multiple malicious files. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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 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://seas2010.cienciaevida.pt/site/upload/file/gebepilemuxefitide.pdf In PDF document text
- http://barudan.hk/UploadFile/file/20210906170159528.pdfIn PDF document text
- http://coral-travel66.ru/admin/ckfinder/userfiles/files/7973541785.pdfIn PDF document text
- https://riminabda.sk/userfiles/file/75561357871.pdfIn PDF document text
- http://solamsys.com/userData/board/file/22004157113.pdfIn PDF document text
- https://inprovitchile.com/ckfinder/userfiles/files/joxuxovuzogop.pdfIn PDF document text
- http://classicalgardenstatues.com/uplds/file/lugixubufozagumanajapex.pdfIn PDF document text
- https://veaodaibrahma.com/uploads/image/files/24532952285.pdfIn PDF document text
- http://liqaa-lb.com/files/userfiles/files/47093549788.pdfIn PDF document text
- https://pcparts.fr/ckfinder/userfiles/files/38444232242.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/6baabf0c320bec85032fd3b5af6978ba/16806737336.pdfIn PDF document text
- http://cabini.it/userfiles/files/joxugufukugijivida.pdfIn PDF document text
- https://sapporomn.com/userfiles/files/lamixuditopufifetumefonem.pdfIn PDF document text
- https://4wheelchile.cl/admin/uploads/file/derafazetovuvejukasozem.pdfIn PDF document text
- https://xn--22ck6bdp5cach0mc23a.com/ckfinder/userfiles/files/vulokazedum.pdfIn PDF document text
- http://retco.ge/ckfinder/userfiles/files/wemilasuj.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/13896282157.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/7ccb5c126fbd61cbaab29acc00a03c73/51681002133.pdfIn PDF document text
- http://telegid.tv/userfiles/files/28540070976.pdfIn PDF document text
- https://burstallconrad.com/editor_files/file/voregaj.pdfIn PDF document text
- https://chorland-dining.com/webroot/editor-uploads/files/16681415918.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613433b458214---wavax.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131da384d892---mesesofitirofekikodal.pdfIn PDF document text
- https://xn--dokumaanahtarlk-llc.net/userfiles/file/71651492540.pdfIn PDF document text
- https://viktorina.ledoritulys.lt/files/narek.pdfIn PDF document text
- http://ciaooo.ru/uploades/userfiles/file/56904909405.pdfIn PDF document text
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614427ba8573f---3010676457.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=download+aplikasi+spc+smartPDF 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_off0000e153.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE153 | 10720 bytes |
SHA-256: eb269587316b2d5ac9a4ce8128c4d7f9a3770b19858e7baa5eaf98e1c4a75bef |
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font_01_sfnt_off0000f9f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9F6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011208.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11208 | 18508 bytes |
SHA-256: b8d30a3c83144781ef51772f797b7705f83e6e37efdfb16b38f71e1788605d4b |
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