MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites and other disposable hosting, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for SEO poisoning or phishing campaigns. The file's structure and numerous external links are consistent with a malicious document designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9889
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://xpressup.com/userfiles/file/56662239744.pdf
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d1f9f325aaf---givanorizubowodenalojobu.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e38f5a967---55107972015.pdf
- http://mopi.eu/ckfinder/userfiles/files/xoretemawufetazoba.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16113d4e89eb75---gubedinijigixu.pdf
- https://trade.inter-ural.ru/ckfinder/userfiles/files/kapiwe.pdf
- https://digireg.ch/upload/3625436758.pdf
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/d7cac9ff606a131958d269d2eab615c9/6087443466.pdf
- http://www.corazondelsol.es/ckfinder/userfiles/files/pivagux.pdf
- https://pametnidom.hr/pametne_kuce/userfiles/file/25249768466.pdf
- http://all-pass.com/folder/editor/file/pubefokinu.pdf
- http://bukharageorgia.com/sites/default/files/file/8723550793.pdf
- http://palyavalaszto.hu/teszt/upload/file/4148867608.pdf
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/b4b0fecc761ce9ba38e693c53e1c292a/tukodasibuvil.pdf
- http://zs-oilfieldequip.ru/d/files/sovivuwujidalatatene.pdf
- http://www.gametimecatering.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c0bce25f2---tunavapu.pdf
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090166330719---fevitonivegeduxal.pdf
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/6b35e7398c65530aea44569cdb45102d/netaxekovusox.pdf
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/90b6bc423b5d3d24b475e65cebbbc175/9754830264.pdf
- https://nstyapi.com/resimler/files/19250410484.pdf
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/sosuxifuwomizawosawe.pdf
- http://hosteleriayvending.com/ckfinder/userfiles/files/54689645443.pdf
- http://gma.ge/admin/ckeditor/ckfinder/userfiles/files/rosijoxonujatazelesapu.pdf
- http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vojaxisunaxewap.pdf
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/0d919f9d41a2b4dd095941b9f85a7ebf/57511307363.pdf
- http://alexlunacoach.com/img/editor/file/patasirik.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=avian+anatomy+atlas+pdf
- 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_off00015e2e.bin36dd68a01bfd8296f702192a5af2ff7232109b2174b2746f9a6dc4e85f780776 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E2E | 10588 bytes |
font_01_sfnt_off00017663.bin1caf5df071e0e7681fdbef0a56c4e4356d39c36030c805d548c81198b157e07c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17663 | 19032 bytes |
font_02_sfnt_off0001a850.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A850 | 16792 bytes |
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