MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is a PDF that functions as a link farm, containing numerous URLs pointing to other PDF files. Several of these URLs are hosted on compromised CMS upload directories, indicating a potential distribution mechanism for malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 5
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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 http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161255de864692---24128033503.pdf In PDF document text
- http://xnkvinatimex.com/uploads/files/6485010797.pdfIn PDF document text
- https://eliteplacementagency.com/uploads/files/jerofiwazerezidowuzamu.pdfIn PDF document text
- http://sbsinternationalschool.org/userfiles/file/71367386473.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609af6773123f---sodasugonuxof.pdfIn PDF document text
- http://hainfelderteich.at/tobolebikarupobusopaxi.pdfIn PDF document text
- http://suriyedostlukdernegi.org/image/files/wusogepigopeda.pdfIn PDF document text
- http://beiks.info/public/file/ninadanewiselovosew.pdfIn PDF document text
- http://kath-kiga-bw.de/bilder/berichte/file/61672868044.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/evq54915u7rc5v3p95s5g3eui5/4416519812.pdfIn PDF document text
- http://interstyle.org/content/xuploadimages/file/vuruginijo.pdfIn PDF document text
- http://baheth24cars.com/ckfinder/userfiles/files/wukilokakivi.pdfIn PDF document text
- http://aydinservis.com/ckfinder/userfiles/files/muvimibepojum.pdfIn PDF document text
- https://www.barrau-philippe-sedeco.fr/ckfinder/userfiles/files/lilewukop.pdfIn PDF document text
- http://www.greenbriarpropmgmt.com/wp-content/plugins/super-forms/uploads/php/files/b9525b8020dcb2ca322325a1545255be/55026393667.pdfIn PDF document text
- http://izdo.org/img/userfiles/files/bukawilubiduxuforegupot.pdfIn PDF document text
- http://maskaevlawyer.ru/userfiles/file/43805865959.pdfIn PDF document text
- https://comtraining.cl/userfiles/files/kinakexaledixifebexen.pdfIn PDF document text
- http://av-jet.ru/userfiles/file/gobamajorakizinili.pdfIn PDF document text
- http://motolargo.pl/userfiles/file/51628897054.pdfIn PDF document text
- http://profil-metall.de/content/uploads/file/nanusis.pdfIn PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b24f1456efb---39656461865.pdfIn PDF document text
- http://juha.be/_files/file/93503635654.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=class+10+chemistry+pdf+downloadPDF 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_off0000e012.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE012 | 11292 bytes |
SHA-256: beee7f4d082f36aef08ff3871069f7bb96f50e881bc82753f39142d2fcffe6c3 |
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font_01_sfnt_off0000fa81.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA81 | 16440 bytes |
SHA-256: 0db1ccc449b6980ee4d6182d6c655353765ce352281b39e46393b6e26c5ee2dd |
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font_02_sfnt_off000124ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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