MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a link farm with numerous URLs pointing to other PDF files hosted on compromised websites. Heuristics indicate these are likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly suggest malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/0d1201b5486e5a3ec762c44f6f72dad9/38481337018.pdf In PDF document text
- http://s13cf5ef.alojamientovirtual.com/ropadefutbolbarata/userfiles/file/69103676700.pdfIn PDF document text
- http://formpart.com/upload/ckfinder/files/sidewel.pdfIn PDF document text
- http://sportservistocik.cz/UserFiles/File/difividelikaf.pdfIn PDF document text
- http://biplano.eu/userfiles/files/mepozamuzonolenarelololiv.pdfIn PDF document text
- http://savemaxint.com/files/file/83290534945.pdfIn PDF document text
- http://lpxs168.com/filespath/files/20210901161131.pdfIn PDF document text
- http://medicalproduct.hu/images/files/sizisaludewixakuxivivi.pdfIn PDF document text
- http://auksozvynas.lt/userfiles/file/76996338552.pdfIn PDF document text
- http://mygotour.com/FileData/ckfinder/files/20210902_67A094FFD6CA91C3.pdfIn PDF document text
- http://ctm.it/userfiles/file/vebenelinojujisetojafiga.pdfIn PDF document text
- https://latrinquette.com/upload/editor/file/karur.pdfIn PDF document text
- http://alpanelektrik.com/depo/sayfaresim/file/23649919859.pdfIn PDF document text
- https://sydneystudytour.com/accounting/userfiles/file/lusotuzolulolotebuxenuzok.pdfIn PDF document text
- https://cristalensi.com/public/File/gugamaj.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16135808f6eb85---92678063259.pdfIn PDF document text
- http://wanyuantemple.tw/userfiles/file/perudujeduzu.pdfIn PDF document text
- http://mq-water.net/upload/kazuwakofukimobexejevenas.pdfIn PDF document text
- http://mebizstekla.ru/userfiles/file/tususapuvuzafitinirob.pdfIn PDF document text
- http://raduzhniy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133cf74b99f1---24558164331.pdfIn PDF document text
- https://viboot.traigiongthuha.com/ckfinder/userfiles/files/90799116497.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/j79fddk913ffue228fgp56e2l0/fozenez.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=unable+to+delete+some+documents+androidPDF 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_off0000cfe5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFE5 | 17984 bytes |
SHA-256: e023b2e154943edeb2ae0abc1de91b8da02a154679117940cc4798a3dd4919be |
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font_01_sfnt_off0000fe11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE11 | 10776 bytes |
SHA-256: 723bc2b3744898128d01255ffb1dca0ffbf19510bcf0cf1baeb6efd533a08564 |
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font_02_sfnt_off000116d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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