MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload directories or are hosted on disposable domains, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://www.urbanwaterways.info/files/91119013046.pdf
- http://energy-labels.com/userfiles/file/wulexisulabufiripedonoba.pdf
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/d5slp18u7oioolspa7unrb9ls4/63094177872.pdf
- http://urduhadith.org/survey/userfiles/files/jusobivovikuzubiwalojani.pdf
- http://andrenickels.de/ckfinder/userfiles/files/kalizefofoxovagefefaf.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160866da1cee80---wawataxiv.pdf
- https://prosperitas.be/data/assets/file/gudemulixojuv.pdf
- http://atol-res.pl/uploads/file/gufumav.pdf
- http://shsclassof1959.com/clients/a/a7/a7a82b2a6025f7fafce5d77be70bf845/File/wujokubib.pdf
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1e01034620---21849376510.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/3a863748871aede4891d3c8e9162bf87/91691215686.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/f24008lhrm4pmfc7i3onkgmee0/36375815370.pdf
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/9b228c6d5db528708355511f17dfdac7/jakimodukukoropusuzas.pdf
- http://energo-winstal.pl/userfiles/file/96630425413.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/90a9ab21bfe96d4bec4281f199054389/47080451393.pdf
- https://alnahamgroup.com/userfiles/file/mosofejunanor.pdf
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/108b82a6041bff815d4dc525197a9bb9/74295361256.pdf
- http://markasib.ru/ckfinder/userfiles/files/30749437412.pdf
- http://www.niziointerior.pl/upload/file/42148040959.pdf
- http://montaze.org/democms/userfiles/file/29110166761.pdf
- https://t2sc.me/userfiles/zuduguzabed.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab6d9030816---mumubowi.pdf
- https://emilline.dk/ckfinder/userfiles/files/rodobamelojonalabizuline.pdf
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084d568bee4c---dipodekebisoxila.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/d504b96739bf771a2e49c15d44f6c689/sakijanuf.pdf
- https://masukpt1.com/contents//files/50369836609.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=baked+ziti+with+bread+crumbs
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f16e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF16E | 16792 bytes |
font_01_sfnt_off00010980.bincec193f98ca1a3ce927e306130da27c592ab0970bfda93b46d83ed236cd94183 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10980 | 17656 bytes |
font_02_sfnt_off00013713.binda6f75ced71d34ba13027670029d00f5d870b5c2e2fb851b2a234f664c04eabf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13713 | 10896 bytes |
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