MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many of which point to compromised WordPress sites, indicating a link farm designed to distribute malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The presence of multiple distinct hosts and the structure of the links suggest an attempt to obscure the ultimate destination and leverage compromised infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160727e549ba93---7612802638.pdf In PDF document text
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/6baa663a7a2e2610dfce7e75d5671655/ruvewagozovena.pdfIn PDF document text
- https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/14f701c791ad9388444e8d37303497af/botimilizibojagebet.pdfIn PDF document text
- https://bouveau-consulting.com/userfiles/file/48071284498.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/7fdc628419440c2eb44d9a7ba9ef657a/wosamopotalitarotipamaw.pdfIn PDF document text
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608285c01f966---lomixelofaxipude.pdfIn PDF document text
- https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c29684682fb---36121291986.pdfIn PDF document text
- http://china-zzld.com/uploadfile/file///2021060117493319.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16086a3d1e67fc---69746290922.pdfIn PDF document text
- http://krajinar.cz/soubory/files/2543731974.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f89a869f14---85482412046.pdfIn PDF document text
- https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/9c67d1f5ae4dec53460d33bd727c1478/kojefenelikupilal.pdfIn PDF document text
- http://coffee33.ru/archive/file/jujukinosulezipegazosuk.pdfIn PDF document text
- https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/160b219777438c---rozetusunokukug.pdfIn PDF document text
- http://anhbanglaw.com/userfiles/file/92671628387.pdfIn PDF document text
- http://innotec-industrie.be/userfiles/file/33617338133.pdfIn PDF document text
- http://gopherandsquirrelcontrol.com/admin/images/file/butopunopi.pdfIn PDF document text
- http://www.alquilerbares.com.ar/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1a224715---90584790392.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1606fa06778e4b---tiwotenot.pdfIn PDF document text
- https://canadianrelocation.net/wp-content/plugins/formcraft/file-upload/server/content/files/160831eb2782c2---fawososaxitupojabijenomu.pdfIn PDF document text
- http://makinsushi.com/uploads/files/10992237401.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/faluziguba.pdfIn PDF document text
- https://area5srl.it/file/jakapujawesaxopig.pdfIn PDF document text
- http://qhs1978.com/clients/d/dd/dd8db5a278a7ad55a2ada34b8e38ebcc/File/xokinad.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=what+does+loco+mean+in+spanishPDF 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_off00011711.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11711 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00012f23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F23 | 17400 bytes |
SHA-256: fbaa23e6ab211877344f3a69c96d96fcc72c3362fa7eacc98b2ccffc422108a8 |
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font_02_sfnt_off00015c49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15C49 | 10672 bytes |
SHA-256: 0a3ddcc19fd4221e03ac0542ee02c9eba144f68d141bf5ce320b0ea5c75740d7 |
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