MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to redirect users to malicious sites. The embedded URLs and the nature of the heuristics strongly indicate a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 https://osikovo.eu/webroot/img/content/files/23824436090.pdf In PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161340b03bb779---2427490939.pdfIn PDF document text
- http://infinity-c-t.com/userfiles/file/8376928609.pdfIn PDF document text
- https://classoft.ro/userfiles/file/20891871418.pdfIn PDF document text
- https://dom-titan.rs/files/pepasojawemaloma.pdfIn PDF document text
- https://artesapanaderia.xyz/aym_image/files/tewijuzive.pdfIn PDF document text
- https://greenlandpark.com/uploads/files/79382412704.pdfIn PDF document text
- https://anthonygillant.com/userfiles/file/zunebijagatuxe.pdfIn PDF document text
- https://www.bnbtravels.com/ckfinder/userfiles/files/nepujukuragotetolebukomu.pdfIn PDF document text
- http://abnig.friendship-match.com/upload/files/gilisojipesirutowebowuto.pdfIn PDF document text
- http://telegid.tv/userfiles/file/292277866.pdfIn PDF document text
- http://eraldocomo.it/userfiles/files/66329366689.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/2e1bbafab3b1ba8f536195f4e1ceb8d3/lavan.pdfIn PDF document text
- http://vivatbacchus.hu/files/file/wivafegufijex.pdfIn PDF document text
- https://acp-luxusingatlanok.hu/ckfinder/userfiles/files/77828645247.pdfIn PDF document text
- http://brandorbit.in/userfiles/file/82377954616.pdfIn PDF document text
- http://oresteruggiero.com/userfiles/files/bokutewuxijipuv.pdfIn PDF document text
- http://yilbasipromosyonu.com/userfiles/file/fixewewijen.pdfIn PDF document text
- http://lsbwg.com/ckfinder/userfiles/files/20210917/021505807.pdfIn PDF document text
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e70a421bb5---vezenogenilavux.pdfIn PDF document text
- http://scoutpate.com/userfiles/file/maginoborogaxiwixerobajap.pdfIn PDF document text
- http://www.almansori-ye.com/almansorifiles/files/18532616674.pdfIn PDF document text
- https://euinsuti.uniluxgym.ro/app/webroot/files/userfiles/files/19612079984.pdfIn PDF document text
- https://regionalhealthprogramsww.com/images/file/vadolulesuwefukanesanuna.pdfIn PDF document text
- https://www.bmo-agencement.fr/ckfinder/userfiles/files/44321101253.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=android+new+voicemail+notification+stuckPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e45e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE45E | 19160 bytes |
SHA-256: eaa193528621c692d651df11edd8065c3a3bf5bc9dfedbdf5a339f88b957fda4 |
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font_01_sfnt_off0001167b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1167B | 10964 bytes |
SHA-256: 87c7dd34a2ab7dda802f6b4b203b7a672beded6fd3f1a5197a4e7fb93bfef916 |
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font_02_sfnt_off00012ffe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FFE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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