MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of links, many pointing to potentially compromised or disposable hosting, suggesting it functions as a link farm to distribute malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure, but the heuristic firings strongly indicate a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://lev-steklo.ru/userfiles/file/silizifeb.pdf In PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16109e5d901520---98661404433.pdfIn PDF document text
- https://stratasphere.online/userfiles/file/54161028425.pdfIn PDF document text
- http://toanthinh.vn/webroot/img/files/96116378948.pdfIn PDF document text
- http://dostavkaturov.ru/files/file/zobinen.pdfIn PDF document text
- https://autoroman-service.ro/imagini_ws/58652445450.pdfIn PDF document text
- http://osc-pribor.ru/products_pictures/file/lonujokenapikilutaralas.pdfIn PDF document text
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/936085354609fb67d24b00.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/252c5b60421d0349181c0f7c6c4ea095/46863476688.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/6e506a28aef34b200824afe49800762e/safumiviwuj.pdfIn PDF document text
- http://baheth24cars.com/ckfinder/userfiles/files/buwufasowirukud.pdfIn PDF document text
- http://www.enjoyvaltellina.it/admin/ckfinder/userfiles/files/25758086734.pdfIn PDF document text
- http://www.norestim.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161260428c8047---jixabemajemu.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc7bba5c0e---36746063807.pdfIn PDF document text
- http://dentherapia.hu/files/file/tasezejafelukafotakiz.pdfIn PDF document text
- https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/qkhkp09bftfj18qsu5te4htduf/6673813052.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/25c25c7d61ecdf8efd7e1f171977dc30/xasafoferofi.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608f43e584619---1212742454.pdfIn PDF document text
- https://vrindaindia.com/php/joseph/uploads/file/77981854347.pdfIn PDF document text
- https://certifiedcollisionrepair.com/home/cert/public_html/ckfinder/userfiles/files/70587675866.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16120ebe48e2d5---2664161148.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=fundamentos+de+limnologia+2+edi%C3%A7%C3%A3o+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_off0000ce10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE10 | 11404 bytes |
SHA-256: 9759aa9fe69772bf469a96cc10ac1856bafb6c4d4c0807645345e525e55d5f73 |
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font_01_sfnt_off0000e84f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE84F | 20564 bytes |
SHA-256: a7f6c5828b2e3da390d7b0d0304c7affe68747211967cfdbf1d84b6365cfc669 |
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font_02_sfnt_off00011c54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C54 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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