MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It functions as a link farm, directing users to multiple compromised websites and disposable hosting, likely for credential harvesting or further malware delivery. The PDF structure and embedded URLs strongly indicate a phishing or malicious redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://crysiq.ru/uplcv?utm_term=basic+spanish+books+pdf PDF link annotation
- https://areicon.com/images/file/35701732871.pdfIn PDF document text
- http://geyikkimya.com/userfiles/upload/file/91558933021.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092317c260d0---numovafakexulakepabejo.pdfIn PDF document text
- http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/refabarojakik.pdfIn PDF document text
- https://wupaojichangjia.com/d/files/wedimek.pdfIn PDF document text
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/1p5omu2ro8q6f42uralteb61qj/xijivapavi.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b05bb992ce---1247753836.pdfIn PDF document text
- http://jnejendomsdrift.dk/userfiles/file/nigogibedagezavatunoget.pdfIn PDF document text
- http://mbfeed.vn/upload/files/77267568551.pdfIn PDF document text
- https://remoteworkerclub.com/wp-content/plugins/super-forms/uploads/php/files/5a1f2167fe47ec16fb5f577a2ba19e3b/41908625902.pdfIn PDF document text
- http://antansconstructions.com/ckfinder/userfiles/files/73505486115.pdfIn PDF document text
- https://giraffeng.net/infodaily/gen-ckfinder/userfiles/files/matipodegazupefatejufege.pdfIn PDF document text
- http://salsainkonstanz.de/media/files/videgofetabuvose.pdfIn PDF document text
- https://plasy.com/uploads/file/36862787213.pdfIn PDF document text
- https://jaukiaplinka.lt/ckfinder/userfiles/files/98293661773.pdfIn PDF document text
- https://atolab.it/wp-content/plugins/super-forms/uploads/php/files/ed1aa59cf341eb486e67a8ebb53946d1/6718196903.pdfIn PDF document text
- http://rockycheng.com/ckfinder/userfiles/files/77006374486.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610acf192479f---vawinov.pdfIn PDF document text
- http://tekizolasyon.com/ckfinder/userfiles/files/fifevovetukeret.pdfIn PDF document text
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/dnn418g8nkv5lr8817uhr74hm0/5447393097.pdfIn PDF document text
- http://brucemsmithlaw.com/clients/e/e2/e252bfde01ef004f685a9648d307a4b9/File/32497928862.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/cfdcc000f52afc049d95f86754863c71/29880463588.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/161255f6746e30---12052164875.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b045990483e---34309214266.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_off0000c87d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC87D | 10624 bytes |
SHA-256: a64298bc76b89f16db64906442bab8c3b9da7d0bff4134fcbf7862a8989da9c2 |
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font_01_sfnt_off0000e07f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE07F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f891.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF891 | 17992 bytes |
SHA-256: fafb31d3235e35e49341903458302309fda68143c5a3ea746ea4ffceb0a20e44 |
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