MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9959
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://chcial.ru/uplcv?utm_term=uluslararas%C4%B1+iktisat+teorisi+vize+ders+notlar%C4%B1 PDF link annotation
- http://ozanatalan.com/iboard/includes/userfiles/files/81822260205.pdfIn PDF document text
- http://wrhs1967.org/clients/6/61/617565fc8afb9cc6d18abf932d248b7a/File/42433234437.pdfIn PDF document text
- http://www.lifestaralberta.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609895d8c5b86---46803484252.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077ff63d3d66---87409170868.pdfIn PDF document text
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/6tjuenr8v0rsvuhnm2na4gve7e/zupafu.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/k2agquvv1o4vn3uubn1ccvclfd/59393006296.pdfIn PDF document text
- http://www.leasebridge.com/CKUPimg/files/nanarevepipazor.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/5fcf024c74a0d2af98eaf09346958004/pedipapuzemaliwixado.pdfIn PDF document text
- https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/civ82j8ts4s5ujfsqofjvkhekd/62292896556.pdfIn PDF document text
- http://fresh-j.info/images/uploadedimages/file/61326133869.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/6312d6c33607c3acdd80d485530dd565/noterateretoxebumi.pdfIn PDF document text
- https://starfoil-mail.nl/uploads/wysiwyg/5631434892.pdfIn PDF document text
- https://nada70.org/userfiles/file/bakowitiwudo.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3bd154d4e---zeruroxivesedamefemogo.pdfIn PDF document text
- http://biosite.ru/images/news/file/bitapovojinaredizex.pdfIn PDF document text
- http://bobas24.pl/Upload/file/loxudejopur.pdfIn PDF document text
- http://bronia.org/userfiles/file/jeruwe.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b17dd95631c---93996659496.pdfIn PDF document text
- http://qkmedica.com/uploads/userfiles/file/belimuputesana.pdfIn PDF document text
- http://vendingchat.ru/uploads/ckfinder/files/jaxenes.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160d3848b9c3d3---xawuzefunolovefekoke.pdfIn PDF document text
- http://rotarycochinharbour.org/ci/userfiles/files/naxipufududulowuno.pdfIn PDF document text
- https://taevlingar.se/images/pages/file/lulubijuvunan.pdfIn PDF document text
- http://www.gonouvellezelande.com/files/47686802108.pdfIn PDF document text
- https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/9d4v0vbl2v6vbokotr9795dtjb/74511343863.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_off00023a50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x23A50 | 19576 bytes |
SHA-256: 8cf35f6965327be2f7b4b27675abee03b99be5c36715cc20d8fcbe91b7f3e3f6 |
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font_01_sfnt_off00026919.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x26919 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00028130.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x28130 | 10612 bytes |
SHA-256: 5fd762f1d1b43db803d0232be7a63d63ad9746d2e78232037f55adfae8e131c2 |
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