MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm or phishing lure. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically highlights this behavior. While no scripts were extracted, the primary attack pattern involves redirecting users to external, potentially malicious, websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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://szabobuszberles.hu/files/files/ruxujawutunukezinap.pdf
- http://musiclivemarsala.com/userfiles/files/jipemegawepo.pdf
- http://noithattamphuong.com/upload/files/60319772039.pdf
- https://baoholaodong24.com/userfiles/file/xasobujawi.pdf
- http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d21a677e3e9---rodogefaxirewowajilulege.pdf
- https://stvorki.ru/files/file/nalofutoviforufepa.pdf
- https://contactfm.be/userfiles/files/73423757267.pdf
- https://norservis.cz/files/files/94922298276.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c897076f2cd---27672555206.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/3e240212f0755734cdceed3855496a58/zibifadofukeri.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc72c899239---631923063.pdf
- http://pro-elec.ru/ckfinder/userfiles/files/rimoduzediza.pdf
- http://metabolit-plus.ru/files/file/sebonilularibetesunire.pdf
- http://poiskvod.ru/images/file/vawat.pdf
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160945229e0a68---sugodividasoriwotawugejum.pdf
- https://xn----8sbcehyodmtf1czh.xn--p1ai/userfiles/file/63133182042.pdf
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/n51ae0h0mbiae5dubqv8264n13/daxarugowibijelozelug.pdf
- https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160ae84aee8124---17130077617.pdf
- https://pirkitpadangas.lt/ckfinder/userfiles/files/5673975982.pdf
- https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c82c558f9b---supatujilavivaxiwariz.pdf
- http://fzsvybbs.at/userfiles/file/wosanumimikusekogixoz.pdf
- http://gpszone.hu/upload/userfiles/file/zipirutusitafiterek.pdf
- https://gagiongvitgiong.com/ckfinder/userfiles/files/vazebidozogage.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/4036b5fc9ce37366b05df1849ae92dba/ravofikefajavapezo.pdf
- https://chiataiec.com/userfiles/Proj_Name//files/2608801440.pdf
- http://miwon.com.vn/app/webroot/uploads/files/tinigatowezizijalozonomi.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=ganglion+cyst+on+finger+knuckle
- 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_off0000ece4.bine6db245b9dc98f21b6eaa710aebee1093db2ab3a567ad3aad0b99d67220f3591 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE4 | 10856 bytes |
font_01_sfnt_off00010633.bin796381781bd0fd8b5092bce949b9bf8d1ef6bd6837aafa437177ddb701ff4b59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10633 | 16588 bytes |
font_02_sfnt_off00013160.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13160 | 16792 bytes |
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