MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many URLs pointing to compromised CMS upload directories and disposable hosting. The embedded URLs likely serve as a lure to direct users to malicious sites for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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 http://www.rotudavid.com/ckfinder/userfiles/files/98918539383.pdf In PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a7819acf1aa---50791043198.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/tr47a0ls1safne1tclb9see5cb/tazugaserudozexir.pdfIn PDF document text
- http://pillshop.ru/uimg/files/gofepul.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/3ef0b20a8054db6d1704caa4ccae5621/sufumokonod.pdfIn PDF document text
- http://apluskleaning.com/admin/images/file/59679533179.pdfIn PDF document text
- http://sakirnoopo.ru/wp-content/plugins/super-forms/uploads/php/files/537a5f7920adce775fb7b7c7823b8bbc/13883437508.pdfIn PDF document text
- https://contactfm.be/userfiles/files/47454054272.pdfIn PDF document text
- https://gemwares.com/userfiles/file/sozepajigalizekuz.pdfIn PDF document text
- http://bdn10.cz/files/file/63031686529.pdfIn PDF document text
- https://planet-for-events.de/userfiles/file/setofebitivekoworex.pdfIn PDF document text
- https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe2240b19a---mebedudomuwezam.pdfIn PDF document text
- http://travelport.pl/userfiles//file/2759208095.pdfIn PDF document text
- http://myqself.com/upload/files/4864120837.pdfIn PDF document text
- http://plafondchauffant.fr//img/user/file/76074521010.pdfIn PDF document text
- http://topenglish.sk/app/webroot/gallery/files/31337239514.pdfIn PDF document text
- https://primewestelectrical.com/wp-content/plugins/super-forms/uploads/php/files/efb5107da66847fbd640a3907436d565/xepukifofusig.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/n11i0kfv5d9r76d07pqshik0tv/35886300582.pdfIn PDF document text
- https://www.basur-tedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cdba04179b---36111612300.pdfIn PDF document text
- https://micro-churches.net/uploads/file/64448795696.pdfIn PDF document text
- https://ourlady-schools2.com/userfiles/files/xunerirekeruwix.pdfIn PDF document text
- http://www.tomasjelinek.com/img/pub/file/1151040689.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160780980afe95---pipigipixodubitaregobilo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=atlas+bradford+blanking+dimensionsPDF 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_off0000c25d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC25D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA74 | 10912 bytes |
SHA-256: 7164555fcb66ed553db276c55fbf1cbe2f752edefbb1c1bee175c9a9356a221f |
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font_02_sfnt_off0000f381.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF381 | 16776 bytes |
SHA-256: 214ddb64df72300647f3cdfae6e0dd3cf3d94266de192b1d9f0a5ca31026928f |
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