MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://smidgel.ru/uplcv?utm_term=heine+retinoscope+manual PDF link annotation
- https://ntpuvoice.com/ckfinder/userfiles/files/wafibasodow.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/vawidirekipalafopisakenu.pdfIn PDF document text
- http://bkbflooringusa.com/userfile/abbey/file/19590812053.pdfIn PDF document text
- http://www.radanhorse.com/resource/files/kivijojowonija.pdfIn PDF document text
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/17e61a4d57796dd3448dc83028e75285/xinokalolewukabitegaran.pdfIn PDF document text
- https://emprenderem.cl/files/palise.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16070e07b97431---jutilisuwanatu.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/jq9gq8qi3kcrvrd3baggnvlk44/fefupode.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/15poekbmo38dormctqsmkilm30/52380749490.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/88069770148.pdfIn PDF document text
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/71f810d0638c5e4b931bdbf3d4f07d0e/dosodulabexegixasojune.pdfIn PDF document text
- http://nguyenquangcomputer.com/upload/ck/files/moxelobugitizegifasibi.pdfIn PDF document text
- https://www.burnat-provins.ch/ck/ckfinder/userfiles/files/kalinazibijevokaxowejaf.pdfIn PDF document text
- https://amoslodge10.org/ckfinder/userfiles/files/20975934636.pdfIn PDF document text
- http://bharatdarshan.net/rgroup/ckfinder/userfiles/files/wejib.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1606fca4d0db24---lines.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160da2232f3732---sanamitodizabeza.pdfIn PDF document text
- http://thebankcardservices.com/uploads/files/vukodonoriza.pdfIn PDF document text
- http://cimkezes.hu/uploads/ckfinder/userfiles/files/megufibezixesak.pdfIn PDF document text
- http://marchmont.ru/imgs/file/70202191169.pdfIn PDF document text
- 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_off0000f37f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF37F | 18288 bytes |
SHA-256: f2edca60306d5f3e733a55b6df7dc8e4afafd48e5dbfc1270ed623ee9acd569e |
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font_01_sfnt_off000122c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122C7 | 10628 bytes |
SHA-256: b504b0e38a5c5336edaf3e94150d14b4a41407349808ba47920e31f742fa9b73 |
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font_02_sfnt_off00013b0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B0E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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