MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites and disposable hosting. These links are likely designed to redirect users to phishing pages or download further malware, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://chcial.ru/uplcv?utm_term=blue+video+hd+background PDF link annotation
- http://abwplazaview.com/uploads/files/xipuri.pdfIn PDF document text
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/cd497b56e666d8c5f8a8647aec00946a/tovuvegowivexuzevubi.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b72922e4599---fomilisadozofe.pdfIn PDF document text
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/b5f91aa3f317a84f7e96a6aa197eea8f/tamuzipojaxaveze.pdfIn PDF document text
- https://hoakhanh.vn/uploads/image/files/59866932814.pdfIn PDF document text
- https://asharfilalkulfi.com/ckfinder/userfiles/files/gatobiwufabuwunivavi.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/d88a3d948fe6d481d249011d99b5f93b/79807110084.pdfIn PDF document text
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b8788420ae2---5150631665.pdfIn PDF document text
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/8c9a0b10a24705cce0cca936cf5eac15/66469117240.pdfIn PDF document text
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/9fb0f0acd4e5c43d0af319c7a0dbf743/jivuvufujul.pdfIn PDF document text
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/263d021b1094f16d578a9df2213d5b58/35760634718.pdfIn PDF document text
- http://creativeindustries.ru/uploads/userfiles/file/572845339.pdfIn PDF document text
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608e86ea2b89f---lifenosigeberenudizow.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/29f469c6b43e40589e55da5bebbea494/15167607431.pdfIn PDF document text
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab5ace1921---71197234505.pdfIn PDF document text
- http://inter-travel.hu/_user/file/jemazilosar.pdfIn PDF document text
- http://cdmatik.com/uploads/file/warovepebakodabepun.pdfIn PDF document text
- http://goreskyreunion.com/clients/b/ba/ba087d28c24afe6c5bc45fa062332e47/File/vozufaw.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/843aabfbf39aeaaa36c628d700d78ddd/mevez.pdfIn PDF document text
- http://urbanconstructions.org/images/uploadedimages/file/wilalolopujoxa.pdfIn PDF document text
- http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1607c118c520fe---zovekexajadil.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160754fdab7a4b---40625070746.pdfIn PDF document text
- http://nhs1968.com/clients/65482/File/21542385639.pdfIn PDF document text
- http://jcaf.or.kr/ckfinder/userfiles/files/32538147524.pdfIn PDF document text
- http://tiwtactic.com/userfiles/files/76428122808.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c900a38d241---dofazo.pdfIn PDF document text
- 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_off0000f71a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF71A | 10836 bytes |
SHA-256: 1e57410c2d4ed9c5e4772c80237d76f130eb6a224fe2883295698f9d51adc49c |
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font_01_sfnt_off00010fcd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FCD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000127df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127DF | 16588 bytes |
SHA-256: 479dd1e32f5aec5079b2e3b8fc7c17308daeaa10317ed889d283421eb842624b |
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