MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories, suggesting it functions as a link farm to distribute malicious content or phish users. The document body is heavily obfuscated and unreadable, but the presence of external URIs and the link farm heuristic strongly indicate a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609235dec8953---fosemuropekifukibud.pdf In PDF document text
- https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e48dc715a---gopopunewobe.pdfIn PDF document text
- https://tcufroghouses.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d72a4eea4d4---66988602659.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/60271456607.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160893517f38cf---javutaburipazisiteraribev.pdfIn PDF document text
- http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070f0725064f---kuwegipelabasuviridufav.pdfIn PDF document text
- https://atraba-holding.com/userfiles/file/felaloxor.pdfIn PDF document text
- http://mistral-paints.cz/userfiles/files/dutonidorenubomunufobazi.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/a8020c3c43ab9c9ddbf737328f337136/zagula.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/47647916231.pdfIn PDF document text
- https://ifacemount.com/wp-content/plugins/super-forms/uploads/php/files/qedeh1lukk1oc8o5u7og85ktve/65086023126.pdfIn PDF document text
- https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/rv46hs4e8i2bpc99ju6oaf5gfo/42995996673.pdfIn PDF document text
- http://remont-etalon.ru/upload/files/sunux.pdfIn PDF document text
- http://surtek.biz/image/files/20150120_083651.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079a79e417b3---rizojozavixumafipekedoxu.pdfIn PDF document text
- https://k-barrierfree.com/FileData/ckfinder/files/20210627_1803AA99500DBD7B.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/njghg2ff337mbqd0pbblqqbr84/wetuzote.pdfIn PDF document text
- http://astro2sphere.com/admin/images/file/gasumuta.pdfIn PDF document text
- https://jurad.eu/files/file/43378236220.pdfIn PDF document text
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a7188fa0326---nitazabubitevate.pdfIn PDF document text
- http://midel.me/userfiles/file/64581712443.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/e6e394e333f9b9856ddc2a921ca6519a/71488611423.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1609edaffc4a88---5649845411.pdfIn PDF document text
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/65d7bfc0b4dede965de512aeee0d4cb9/14168571665.pdfIn PDF document text
- https://monuments-msk.ru/wp-content/plugins/super-forms/uploads/php/files/6f14ab3853bfd06049215ed7d397e754/difajubowa.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=attack+on+titan+online+dubbedPDF 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_off0000e1ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AB | 10408 bytes |
SHA-256: 9f10fa636c06ef0607410abbf77c496a3d44f8f7c44ca205f6bd0f8486a0912f |
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font_01_sfnt_off0000f959.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF959 | 18092 bytes |
SHA-256: 6679b5ab7f5e397417d65c100ec8c78a82561d12a0c20ef1588fb8a3de0fa170 |
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font_02_sfnt_off000128c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128C3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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