MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links to external websites, many hosted on compromised WordPress installations or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://queure.ru/uplcv?utm_term=stoichiometry+test+review+answers PDF link annotation
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/nizeveze.pdfIn PDF document text
- http://ergo-logo-bamberg.de/userfiles/file/18666327560.pdfIn PDF document text
- https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/lvk3pikb8q0o6d3u177ahglfnf/wuxanukeguwuxaz.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8faae6ddce---99204322581.pdfIn PDF document text
- http://bscartridge.com/pic/neguwufowazirubadiko.pdfIn PDF document text
- https://slezanie.eu/userfiles/file/kumugexozadoneluji.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608064bf3c21e---93456145560.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfade8ab8e8---29102155787.pdfIn PDF document text
- http://ssteelelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/94235930737.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/3neffd5be2ihc1cc7u9puotv9p/pamanoxewirepejupobew.pdfIn PDF document text
- http://ajtoablakcentrum.com/_user/file/64240418871.pdfIn PDF document text
- http://strategie-online.net/catalogue_dynamique/file/tamasivitusiriru.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/aea4fb792dd456404450ec60a44c2d54/87457302864.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/22092b7a4e47ab16c55ed9459f789695/62657484545.pdfIn PDF document text
- http://elitvorota.ru/f/file/pidewuri.pdfIn PDF document text
- https://renebeumer.nl/userfiles/file/67826627850.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/7b5bdbce50a264f81b43683b813697c4/suwusirizike.pdfIn PDF document text
- https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/0792cad58168ffc82d08f50d596f3de7/jovamunu.pdfIn PDF document text
- https://projetounificado.com/uploads/files/sizolifefirefav.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/9186c7c3bdbb90c620e9d53dfe485175/52180306430.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b518930b1ab---fupodojuwutivotamuxola.pdfIn PDF document text
- https://palcev.ru/userfiles/file/nuvokigiworifununama.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/867d90a3f46a8a620ed0912402644a9c/masawazabovabuseferagija.pdfIn PDF document text
- https://an-professional.ru/img/files/file/85015952688.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_off0000babe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBABE | 16920 bytes |
SHA-256: 9d28797bb7d2da56e53f3e684e31d974bd7c672252ac846716db7c521d2c43f4 |
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font_01_sfnt_off0000e54e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE54E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000fd65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD65 | 10788 bytes |
SHA-256: f37866136c1dba083075e1ffc4706f9b07a507d97b2c22fce3d2349cd1d18e1b |
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