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 ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to potentially compromised or disposable hosting sites, suggesting a phishing or malware distribution scheme. The presence of external URIs and link farms on disposable hosting supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://garglob.ru/uplcv?utm_term=working+at+height+safety+pdf
- http://solyaris.pro/admin/ckfinder/userfiles/files/28857636790.pdf
- http://yuanjen.com/ckfinder/userfiles/files/2250871760.pdf
- http://gardatrans.com/content/Files/tigogufedowabupoxasef.pdf
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/d90b1bc7ba7833a38e8d91547e70dc13/zabipajifepuvolujakabowu.pdf
- http://beachfirebrands.com/userfiles/file/19333164285.pdf
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/n9pkd2gi6arpg5gro1joat1t66/muwogetavavisusidajed.pdf
- https://cebrigantina.com/025-CEB/images-editor/file/nijuxopokogavamapavon.pdf
- https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/91078a51b46eb06d9f19f1b4c59d2546/podenonipomexogoxudarisip.pdf
- http://delannahotel.com/user_img/file/kimojo.pdf
- http://abacusnancy.com/userfiles/file/88963519359.pdf
- http://dabaizhongxue.com/upload_fck/file/2021-5-17/20210517220225275518.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607824bca57f8---34526693460.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098b35f6daf0---vobigili.pdf
- http://a-pluset.com/userfiles/rikamirab.pdf
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/806e1b5f189db6cb0ba2bff288e5b905/zerazo.pdf
- http://soflocops.com/clients/67403/File/bidud.pdf
- https://smilaxlabs.com/userfiles/files/jerig.pdf
- http://thedewakohchang.com/image/upload/File/5308954960.pdf
- https://thietkewebseo.com/webroot/img/files/43820808911.pdf
- http://consade.com/userfiles/file/tilelu.pdf
- http://aarogyamedico.com/userfiles/file/pexuxoxijurokakugeverema.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087535f109d8---wupegu.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_off0000d87b.bin944a0684411df04b06db2eaa9abcd08f6d58697805fb589143d46605a74040ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD87B | 10932 bytes |
font_01_sfnt_off0000f19d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF19D | 16792 bytes |
font_02_sfnt_off000109af.bin3f4ab6124aaa3bc403cff609b3b5932be3f9498602af40caf8d161dd4646a22f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109AF | 16632 bytes |
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