MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites, indicating a link farm designed to redirect users to potentially malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' and ML classification further support its malicious nature. The primary attack pattern involves luring users through a document that, while not containing readable text, functions as a gateway to external, untrusted resources.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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 http://foto-klub.dk/userfiles/file/wonapabenapugujawar.pdf
- http://ahdongjiu.com/upload_fck/file/2021-4-29/20210429171731935986.pdf
- http://alternativecarrepair.com/userfiles/file/potitagejifaminuzivuw.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f357e3370---74997679357.pdf
- http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/df5lhvpb27ojibpmkjlj3cucv2/wurezebasarip.pdf
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/dfd6c12abc0e4318a733fac02f59bad3/jobinu.pdf
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/207m0giripajomjm47ivdjbmn1/78776770971.pdf
- https://ferado.vn/userfiles/file/57708707832.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072b113bfdc6---batezuse.pdf
- https://101doctor.com/uploads/ckfiles/files/60b10db3b84fa.pdf
- http://xlsferrosilicon.com/d/files/buruwarixujeti.pdf
- https://webupdate.ca/wp-content/plugins/super-forms/uploads/php/files/kuapihfdqk6s1lj27e4j8uuqms/medogifirimulipezekupuv.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c2dc2fc5f0b---sevizimu.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16078a1a7ec0c3---70413119509.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/7qu2to5cp53t9hesofta8uh184/xajodamegewafulinatara.pdf
- http://ilovegabal.net/fckeditor/_upload/file/dasozabesaze.pdf
- http://year-c.com/upload_fck/file/2021-6-25/20210625042956879675.pdf
- http://engroupe.ca/aym_image/files/sibegofufivuserasiza.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b711e03e09b---23716346329.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/adf7f9994c2078c8982a7e0f1d5eac11/soduxovogixatavugukebe.pdf
- http://yngc.ru/admin/ckfinder/userfiles/files/11772101994.pdf
- http://pensjonatagat.pl/userfiles/file/67706505503.pdf
- http://www.kickcommerce.com/userfiles/file/67983063795.pdf
- http://bertrandetgastineaudesigners.com/userfiles/file/59973282851.pdf
- https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/f37b7976eb0eda85c53fb8816724badd/zisedategon.pdf
- http://ural-resyrs.ru/data/file/xegemab.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=milliliters+to+hectoliters
- 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_off0000c9b1.bin21af0aac727978f8336cf80820df441ca9341a99b916deaa2700062a13ad2cd2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9B1 | 16680 bytes |
font_01_sfnt_off0000f528.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF528 | 16792 bytes |
font_02_sfnt_off00010d3f.bin482c7697b3f195ebb67e44421b41d7b84b0f93d878ffb71055fe3fc2bc160383 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D3F | 10056 bytes |
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