MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code within documents. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous extracted URLs indicate that this PDF is designed to act as a link farm, redirecting users to potentially compromised websites or phishing pages. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/5b66541b48cf49d3d7006ff36b7b0560/pisoxivow.pdf
- https://svarovanijelinek.cz/ckfinder/userfiles/files/pezugumubusirositulobema.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/vfed0iuerq0etervhgdacvk247/6277131036.pdf
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/3460419093.pdf
- https://sierrainstruments.cn/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202109/file/susunedazitafetuminexu.pdf
- http://donahoelawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/25328167876.pdf
- http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/5854488715.pdf
- https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/lixek.pdf
- http://www.galiantsolutions.com/emailimages/file/vuzafizo.pdf
- http://szyqjsj.com/UploadFile/file/20210904021918969.pdf
- http://thesnowmanicecream.com/ckfinder/userfiles/files/semiburovoro.pdf
- http://yameitecl.com/ckfinder/userfiles/files/20210916_025732.pdf
- https://mami-m.com/Uploads/userfiles/files/85982733251.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1613ab58d81fab---95524022566.pdf
- https://libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/71053139824.pdf
- https://hyosungulf.com/uploads/file/10765621118.pdf
- https://vsevolozhsk.mebel18.com/uploads/files/sovuvajisaboxowuje.pdf
- http://kaushalacademy.org/ckfinder/userfiles/files/61202782038.pdf
- http://www.gpkoaee.ru/ckfinder/userfiles/files/fobefodi.pdf
- http://shuimotongyuan.com/userfiles/file/61775333981.pdf
- https://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/70006946466.pdf
- http://toyotarent.tw/FileData/ckfinder/files/20210907_2A61B1E50FE38929.pdf
- https://livresdarts.com/ckfinder/userfiles/files/11085181523.pdf
- http://konikanarrowfab.com/ckfinder/userfiles/files/98154076703.pdf
- http://herfon-machinery.com/images/ckfinder/files/20210908122526.pdf
- https://kermiradiatoriai.lt/images/files/14635664359.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=nice+android+games+free
- 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_off0000edd4.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDD4 | 16792 bytes |
font_01_sfnt_off000105e6.bin56fb0272cee199cefcc999632653c4e4f854d7f29f29e2e771f78491c4da9a10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105E6 | 16780 bytes |
font_02_sfnt_off0001315b.bin8a17ee00b28508286598949158b431791e7ba27c893c6fb960a53556370c7dc5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1315B | 10652 bytes |
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