MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan distribution attempt. It contains numerous links pointing to external websites, many hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the overall structure strongly suggest this file is intended to be delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://pistant.ru/uplcv?utm_term=wii+theme+song+chords PDF link annotation
- http://sitepride.com/clients/c/c8/c8c605999f3d8352d7bb792cf3fdb25b/File/55448574127.pdfIn PDF document text
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/mmkt969himjujulgjutf0hcgq5/91464827509.pdfIn PDF document text
- https://szabobuszberles.hu/files/files/87314213024.pdfIn PDF document text
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608fbf430a371---fabadefeziz.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d329b0530e---19785174111.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609df7e7d5bf2---49282532853.pdfIn PDF document text
- https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/d8cf3da0beec96862e1108398edc1f11/kapifevobimeditipinos.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608184e629dae---lujizajesigerok.pdfIn PDF document text
- http://alphabodysupplements.com/newerac2c/userfiles/file/6123941460.pdfIn PDF document text
- https://cursosadistanciayonline.com/medios//files/vutidasipuzeviropu.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cfe71c190e---70367739148.pdfIn PDF document text
- http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/259c3fbc17f1fbf5774190404cf7753d/vemigeninofudukewukuwa.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/16071cdddec7b7---9830492691.pdfIn PDF document text
- http://kcde.kr/userfiles/file/83994620564.pdfIn PDF document text
- https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/85a0b6385f79233bc348fb7d51f87111/korijisoz.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160bc1b82839dc---genozibub.pdfIn PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/tnuj5j6hj398chgjmic8ovm385/nixugesokosev.pdfIn PDF document text
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160762833021cb---mipulufunufipom.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/1m5efpqttoulgjo7n04r74vqid/dafopadovukutuxafixore.pdfIn PDF document text
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/bvi8v7uapkrbg8gucau4gh1lo1/dopixa.pdfIn PDF document text
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/777b619e3ede3e8bcdfa7e8f07a0765d/wilaxuzibanudedinupek.pdfIn PDF document text
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b1e16d55e---nusis.pdfIn PDF document text
- http://extracam.es/app/webroot/arxius/file/gawegupubaxa.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8ccaae743a1021b069542855cde798ee/50435059342.pdfIn PDF document text
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bd541ca52d9---bumujo.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_off0000f3c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010bdf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BDF | 10600 bytes |
SHA-256: b943ee658704f55414d6a3fd1ccee9ca8004d87763d6a24499796358274c40b0 |
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font_02_sfnt_off000123b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123B7 | 17108 bytes |
SHA-256: f9e398320d51bf8c8a61dd15d0b9d9e1e2c6f380fc62de7e32495270826f209d |
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